Contributions to Mineralogy and

Petrology

9 Springer-Verlag 1982

Proceedings of the Twelfth General Meeting International Mineralogical Association 1980

Officers and Colmcillors. 1978-1982 President: First Vice-President: Second Vice-President : Treasurer: Secretary: Councillors :

Past President :

Claude Guillemin (France) Ivan Kostov (Bulgaria) Peter Wyllie (U.S.A.) Leonard G. Berry (Canada) Christel Tennyson (Germany, F.R.G.) D.S. Coombs (New Zealand) Manuel Font-Altaba (Spain) R.A. Howie (U.K.) Henning Sorensen (Denmark) Ichiro Sunagawa (Japan) V.S. Sobolev (U.S.S.R.)

The twelfth General Meeting was held in Orleans, France, from July 4th to 6th, 1980. Two precedent excursions, June 30th to July 3rd, were arranged to Brittany and to the Auvergne for 100 participants. Main topics of oral communications and poster sessions were: Crystal growth and petrology, Physics of minerals, Application of electron microscopy to mineralogy, - Magmatic liquids trapped in crystals, Mineralogy of silicates, Study of gem minerals and materials. For printed papers cf. Bull. Mineral. 104 (540 pages)* Business meetings of delegates were held on July 4th and July 6th. The following member countries were represented by delegates: Australia, Austria, Belgium, Brazil, Bulgaria, Canada, Denmark, Finland, France, Germany (F.R.G.), Hungary, Italy, Japan, Netherlands, New Zealand, Poland, Portugal, Spain, Sweden, Switzerland, United Kingdom, United States of America, and Union of Soviet Socialist Republics. China was welcomed as thirtiest member country upon approval of the council although the problem of representing the Society remains open. Observers from non-member countries, Greece, Korea, Mexico, Morocco, Rumania, Tunisia, and Venezuela attended the meeting. In December 1979 the former "Discussion Group" formed the "Mineralogical Association of South Africa" as Member Society. There was no resignation in the period 1978 to 1980. Amendment

of

tile

By-Laws

At the first Business Meeting, the delegates approved the following amendment (italic): Article 12. Commissions (b) Nominations for the chairman and secretary of each Commission shall be made at any early session of the Business Meeting; elections, normally for a period of four years, shall be made at the latest session of the Business Meeting. This procedure is also valid for the election of a vice-chairman if the special duties of a Commission make it necessary. Commission Officers are eligible for re-election.

* Now available as separate volume

Report of Treasurer

1 July 1978 to 31 Mai 1980 Receipts

Cash on h a n d - 1 July 1978

US-dollars

Chicago account 51-90819 Chicago account 1966584 Kingston account 9839 NP Kingston certificate of deposit Dues for 1978 Dues for 1979 Dues for 1980 Sale of World Directory of Mineral Collections Sale of Proceedings, World Directory of Mineralogists Bank interest

1,380.25 53.11

Can. dollars

--

5,913.66

-760. -1,820.1,380.-10.8.-108.80

5,387.88 67.57 104.51 45.76 1,500.14.10 2,226.76

5,520.16

15,260.24

660. -1,200. -3.--

2,033.74 833. -263.83 39.35

Disbursements

Travel grants (1978) Travel grants (1980) Treasurer's expenses Bank charges Cash on hand Chicago current account 51-90819 Chicago savings account 1966584 Kingston savings account 9839 NP Kingston certificate of deposit 4137596 Totals

1,695.25 1,961.91 --

1,090.32

-

11,000. -

5,520.16

15,260.24

L.G. Berry, 18 June 1980

Report of Auditors

We have examined the treasurer's books, records, and the bank statements of the International Mineralogical Association for the period 1 July, 1978 to 31 Mai, 1980. We find them to be in good order and in agreement with the financial statement presented by the treasurer. Orl6ans, 4th July, 1980. O.V. Petersen P.C. Zwaan

Forthcoming Meetings

1982: Professor Kostov gave further details of the next General Meeting to be held in Bulgaria. 1984: Professor Coy-Ill, Spanish delegate, submitted an invitation to hold the IMA-Meeting in Spain. 1986: Professor W.G. Ernst, President of the Mineralogical Society of America extended an invitation and submitted a proposal for the General Meeting at Stanford University, California.

Reports of the Commissions and Working Groups 1. Commission on Abstracts

Chairman: Secretary :

Th. Hfigi (Switzerland) R.A. Howie

The following report was presented by the chairman and approved without comment. 1. The main concern of the Commission in recent years has been to produce an I.M.A. Thesaurus with mineral names, rock names, and general terms. The first draft was made in 1974 but it has not been possible to correct it or bring it up to date; this draft had only one big alphabetical list with mineral names, rock names and general terms altogether. The Commission has now decided to abandon this draft Theasaurus. In its place, as a first step in producing a definite list of mineral names, the Commission recommends that the names used in the 1980 edition of Fleischer's "Glossary of Mineral Species" be adopted. 2. The Secretary of the Commission will write to Editors of the main journals containing papers on mineralogy and petrology, pointing out the importance of an informative abstract and asking that editors give same care to checking that the author's abstracts are good enough. Editors will also be asked to publish their author abstracts in English as well as in the normal language. 3. Cooperation will be encouraged to continue with the I.U.G.S. Working Group for production of a multilingual theasaurus in Geology.

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2. Commission on Cosmic Mineralogy

Chairman: D.P. Grigoriev Secretary : Klaus Keil No report. The secretary has submitted his resignation. 3. Commission on Crystal Growth of Minerals

Chairman: Secretary:

I. Sunagawa (Japan) A. Baronnet (France)

The following report was presented by the chairman and approved without comment. The Scientific Session, on Friday 4th of July, included 2 invited lectures and 9 oral communications. There were posters and 6 other communications among other sessions. These latter communications indicate an increasing interest in crystal growth problems among mineralogists. The Commission will try its best to promote this trend. As a consequence, the Commission decided to sponsor the following Meetings: 1) A "Symposium on the Crystal Growth Processes in Sedimentary Environment" to be organized by R. Rodriguez in Spain, April 1982, 2) A Short Course on the "Kinetics of Geological Processes" sponsored by the Mineralogical Society of America, April 1981. Attending members also agreed to support the three following meetings: 1) "Growth from Solutions" organized by F. Bedarida to be held near Genova on April, 1981, 2) Summer School on "Interface Phenomena" organized by B. Mutaftschiev to be held at Erice (Italy). 3) "Crystal Morphology, Synthesis of Minerals", co-organized by British, German and Dutch Associations for Crystal Growth to be held on May 6-8, 1981 in the Netherlands. 4. Commission on History and Teaching

Chairman: Secretary:

H.E. Wenden (U.S.A.) P. Paulitsch (Germany, F.R.G.)

The following report was presented by the secretary and approved without comment. The meeting of the Commission on Saturday July 6th was held with Prof. P. Paulitsch presiding in the absence of Prof. Henry Wenden. Educational programs of Mineralogy were presented and explained by Prof. Bambauer for Germany (FRG), Prof. Paulitsch for the degrees Dipl.-Ing. and Dr.-Ing. for mineralogists at the Technical University in Darmstadt since about ten years, Prof. Provoust for France, Prof. Pedemonte demonstrated the pre-university-teachingin Italy. Written educational programs for Belgium (by Prof. Bourguignon) and New Zealand (by Prof. Shelley) are also available. Prof. Yagi gave a brief history of Mineralogy in Japan since 1802. Possibilities for exchange of students as a constant part of the educational program were another topic for discussion. For the meeting 1982 the Commission agreed on the following program: 1. History of the Mineralogy in Bulgaria (Simenon). 2. A) The different teaching programms in each country. B) Questions on pre-university-teaching (Pedemonte). C) Summer schools for Mineralogy. D) Possibilities for student exchange during their progress through university or in industry (Gabis). 3. New textbooks on Mineralogy. 5. Commission on Mineral Data and Classification

Chairman: A. Preisinger (Austria) Secretary: P.B. Moore (U.S.A.) Oral presentation by the secretary was approved without comment. 6. Commission on Museums

Chairman: Secretary:

P.C. Zwaan (Netherlands O.V. Petersen (Denmark)

The following report was presented by the chairman and approved without comment: Of the World Directory of Mineral Collections, the second edition being published in 1977, 295 copies have been sold. Possibilities to promote the sale of the remaining 200 copies have been discussed with the members of the Commission. The compilation of information on type specimens is still not making as much progress as was expected, although several members have already done a lot of work on data on type specimens in their respective countries. Meanwhile Dr. Arthur Roe has resigned as chairman of the working group, this position having been taken over by Professor Dr. H.J. R6sler of Freiberg, DDR. From recent activities it may be expected that the progress of this very important work will improve in due course. By direct request of the I.M.A. Council, the members of the Commission were asked to find out whether there are certain rules in their own countries concerning collecting and import/export of minerals. Although response was not given by all of them, even less than 50% gave an answer, the results witl be forwarded to the Secretary of the I.M.A. The Commission received a memorandum in which the qualifications of a mineralogist who curates a major mineral collection were discussed. Mineralogy as a profession has become so spintered that many practitioners of impressive academic standing do not, literally, know much of specimen mineralogy, nor have any particular appreciation of the curators aspect of the science. It was agreed

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that Mr. P. Desautels and Dr. A.C. Bishop will produce guide lines for appointments of mineralogists to curatorial positions. It is hoped that the results after discussion may be used as an I.M.A. resolution.

7. Commission on N e w Minerals and M i n e r a l N a m e s

Chairman: A. Kato (Japan) Vice-Chairman: H.H. Hey (United Kingdom) Secretary: G. Gottardi (Italy) The following report was presented by the secretary and approved. In addition, caused by a question, Gottardi pointed out that materials transformed in the laboratories are not minerals. Minerals, by definition, must be of natural origin. Report of activity 1978-1979 The Commission had a session at Akademgorodok, U.S.S.R., on September 6 and 7, 1978, in the frame of the l l t h general meeting of the I.M.A. The Commission decided that, if after two years of the approval, the description of a new mineral is not published, the chairman will remind the author(s) that it should be published within a year, at least in the abstract form submitted for approval. If, after this third year, the description is not published, the author(s) will lose any right of priority and the mineral should no more be considered as approved by the Commission. The Commission also decided that, if the chairman is unable to contact the author(s) of an unpublished approved new mineral, this responsibility passes from the chairman to the appropriate national delegate. The Commission also decided that the author(s) of papers on new minerals without a name have no priority right on the eventual subsequent naming of the same mineral. As a consequence of recommendations approved at Akademgorodok, the Commission decided (by a later postal vote) that: 1. The Chairman shall prepare a new version of the "Procedure of the I.M.A. Commission on N . M . M . N . " . 2. The Secretary shall prepare a new version of the "Suggested outline for new mineral descriptions". 3. The priority reservation for authors of those countries which have a national Commission for new minerals and mineral names (U.S.S.R., France and Japan) be maintained for a period of one year only if the priority reservation is requested by the chairman or a member of respective national Commission. At that time a complete detailed abstract must be submitted to the international chairman who will transmit copies (with the date of priority) to all national delegates for their information only. Should the proposal be approved by the national Commission, the vote by the other national delegates would be faster than for a new proposal. All officers of the Commission were confirmed at Akademgorodok; the new officers shall be elected in' 1982; there was no change in the list of the national delegates. The national delegate of Australia, Dr. Nickel, prepared a file of powder patterns of all new minerals; the file is calles M I N D E X , and is available to all Commission members. 1. N e w names and new mineral species l a. Votes before publication

Table 1 has been updated for 1976, 1977, 1978 and 1979. In the last two years, the number of new minerals approved by ~e Commission had a sudden increase, from nearly 55 to 80. As already stated, there are many approved new minerals which are never Tableau 1. Nouveaux noms de min6raux propos6s Soumis/t I'IMA avant publication

N o n soumis/~ I'IMA (votes sur listes annuelles)

Pourcentages

De descriptions approuv6es

~=

A6

0

<

z

1962 fi 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979

~.~

"~

9

"-~

<

>o

190

167

14

6

36 45 48 57 33 67 62 43 58 50 82 83

30 35 39 49 30 6I 59 42 56 49 78 80

8 4 4 6 1 5 1 1 -1 4 2

-6 5 2 2 1 2 -2 --1

,

0

~.~

~

O

O

z

<

14

219

104

34

81

13

409

46%

88%

47%

17 17 17 18 18 20 17 18 18 18 17 19

9 15 15 6 7 10 22 6 9 6

3 1 2 1 1 2 2 2 3 1

-3 -1 3 -8 1 2 3

6 11 13 4 3 8 12 3 4 2

14 13 13 14 13 17 17 15 11 15

47 60 63 63 40 77 84 49 67 56

81% 75% 76% 90% 83% 87% 74% 88% 87% 89%

81% 78% 81% 86% 91% 91% 94% 98% 97% 98%

33% 7% 13% 17% 14% 20% 9% 43% 33% 17%

<~

published; the delegate of France prepared a "list of deplays" for the first time in 1978, just to emphasize this phenomenon. The number of minerals, which are not approved, is very low, mainly because the Chairman is very active in screening the new data, and he is able to suggest to the author(s) the necessary improvements before submitting the proposal to the vote of the delegates. lb. Votes after publication The annual list of all new mineral names, approved or unapproved, is compiled every year by the delegate of France. Subsequently, the new names, which were published without approval are submitted to the vote of the Commission: this n u m b e r is low (less than 10), and 2 or 3 are approved every year. I c. Minerals "without name '" The Commission also discussed this item at Akademgorodok, because too many descriptions of unnamed minerals are published every year (26 are reported for 1977); data sufficient to warrant an acceptable description could be easily collected for many of them. Anyway the Commission decided (see above) to refuse any priority right to the author(s) who described new minerals without a name.

Tableau II. "Nouvelles esp6ces min6rales" publi6es avec ou sans nouveau n o m Ann6e

Nombre total

Esp6ces avec nouveau nom Nombre

Esp6ces sans n o m

Approuv6es avant publication

Pourcentage Approuv6es (total)

Votes n o n concluants

D6sapprouv6es

Approuv6es avant publication

Nombre

Pourcentage

1962 420

359

120

68%

8%

24%

35%

61

14%

53 77 68 62 64 58 103 65 51 86

46 54 52 47 44 48 79 52 48 60

37 39 37 41 37 38 57 46 39 54

87% 74% 75 % 89% 86% 83% 75% 92% 87% 91%

6% 2% 2% 11% 2% 4% 7%

13% 20% 25 % 9% 7% 17% 15% 6% 8% 2%

80% 72% 70% 87% 84% 80% 72% 88% 81% 90%

7 23 16 15 20 10 24 13 3 26

13% 30% 24% 24% 31% 17% 23% 20% 6% 30%

1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977

2. Modification o f existing nomenclature 2 a + b. Discredited names and new definitions The Vice-Chairman is responsible for this activity, which is summarized in Table III. 2 c. Type specimens Nothing new worth mentioning. 2 d. Nomenclature o f small mineral groups The Vice-Chairman supervised the revision of the Hauchecornite group during 1979. 2e. Nomenclature o f complex groups The subcommittee on Micas is active but the subcommittee on Pyroxenes had a long pause because Malcolm Ross resigned as chairman; from April 1980, the new chairman is N o b u o Morimoto, while M. Ross remains as a voting member. A subcommittee on zeolites has been nominated. 2f . General problems o f nomenclature The Vice-Chairman and the Secretary submitted to the vote of the Commission a manuscript " O n the use of names, prefixes, suffixes and adjectival modifiers in mineralogical nomenclature", and the vote was in favour. The manuscript has been published in several leading magazines. Minutes of the Sessions held at Orl6ans (shortened) The secretary gives a short report on the preparation of the new version of the "Suggested outline for a new mineral description", whose preparation was interrupted for a while because of consulting the Commission on Ore Microscopy. The chairman reports that almost a third of the national delegates never take part in the votes of the Commission. Dr. Nickel suggests that, if a delegate sends his ballot for less than 10% of the votes in year, the chairman has to transmit this information to the national ,organization represented by that delegate.

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Tableau III. Changements recommand6s dans la nomenclature

Ann6e

AnNens noms discr6dit~s

Nouvelles d~finitions d'anciennes esp+ces

1959 fi 1968

140

18

1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979

5 15 5 1 5 3 0 ( + 29) 3 10 (+193) 3 1

-

Note:

i 5 3 3 4 6 4 3 1 -

R~visions des petits groupes

4

1

1975:29 noms discr6dit6s avec le vote sur les pyrochlores 1977:193 noms discr6dit6s avec le vote sur les amphiboles

The chairman reads a letter of the delegate of U.S.S.R., Frank-Kamenetski, inviting the Commission to discuss on: 1. Report of the I.M.A.-I.U.C.R. joint-committee on nomenclature. 2. English version of "Criteria used when scrutinizing new minerals". 3. Report of the A.I.P.E.A. committee for nomenclature of the clay minerals. The Commission discusses briefly on these points, but does not consider as useful an ample re-consideration of the matter. The secretary reads a letter by Harris, delegate for Canada, proposing a new rule for treatment of unpublished approved minerals : Upon approval of the mineral by the Commission, the author(s) are allowed two years to publish their data. (The two years would be from the date the chairman notifies the author(s) of the commission's vote). If the mineral description is not published, the data is no longer considered as approved. The responsibility rests with the author(s) to publish the mineral description within two years or to present evidence to the chairman, if required that the mineral description is in the process of being published in a scientific journal. Any extension of these deadline must be approved by the commission members in the normal voting procedure. The Commission approves and invites the chairman to include this rule in the new version of the "Procedure of the Commission N.M.M.N., I.M.A.". The Commission also decides that the rule of two-years validity of the approval, must be applied to the alreeady approved new minerals for which the two-years period shall start from now. The following candidates are presented for the next election: For chairman: For vice-chairman : For secretary:

J.A. Mandarino (Canada) M.H. Hey (Great Britain) F. Cesbron (France)

No conclusion was reached for treatment of amorphous minerals. The chairman shall treat amorphous minerals with the common procedure, but he will emphasize in his memorandum the lack of crystallinity, if any, and any other property which was mentioned during the discussion (presence of small peaks in the X-ray or electron diffractogram, homogeneity, stoichiometric composition).

8. Commission on Physics of Minerals Chairman: Vice-Chairman: Secretary:

S.S. Hafner (Germany, F.R.G.) A.S. Marfunin (U.S.S.R.) C.T. Prewitt (U.S.A.)

The following report was presented by the chairman and approved without comment: At this meeting, the Commission sponsored six oral presentations including three papers on thermodynamics of minerals, and 52 poster papers. This number is only slightly smaller than the number for papers given at the Novosibirsk meeting. In order to maintain the momentum of the Commission, a program subcommittee has been selected for the ] 982 meeting in Bulgaria consisting of Professor K. Langer (Berlin) as Chairman, Dr. G. Calas (Paris), Dr. L. Finger (Washington, D.C.), and Dr. M. Maleev (Sofia). The subcommittee was asked to begin now to consider symposium topics and possible speakers for the 1982 meeting. Concern has been expressed that Commissions operate too independently and that there ought to be more coordination among Commission activities. A suggestion was made that we consider joint symposia with other Commissions such as Ore Minerals and Crystal Growth and with Working Groups on Electron Microscopy, Gem Minerals, and Thermodynamics of Minerals. The Commission recommends that efforts be made to improve the presentation of both oral and poster papers in future meetings. Such efforts could include (1) avoidance of simultaneous sessions on related subjects, (2) provision of a complete chronological program of the meeting, and (3) distribution to authors of a set of standards for preparation of oral talks and posters. Also, for papers submitted to the Physics of Minerals sessions, the Editors of Physics and Chemistry of Minerals have agreed to publish abstracts submitted at least four months in advance of the meeting. It should be possible to publish these abstracts within a few weeks of their receipt. The Editors of the journal, Physics and Chemistry o f Minerals, reported that the circulation of the journal is continuing to increase,

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and that a large-page format will be adopted in 1981. In the period from June 1978 until April 1980, the journal published three comprising 83 articles (and 52 abstracts of the Physics of Minerals Symposium at the 11th General Meeting, 1978) with a total of volumes 1,131 pageS. The Commission thanks Professor V. Gabis, Ortbans, and Dr. G. Calas, Paris, for organizing the Symposium at the General Meeting in Orlbans and for their cooperation. 9. Commission on Ore Microscopy

Chairman: Vice-Chairman: Secretary:

G.A. Desborough (U.S.A.) C. Levy (France) E. Stumpfl (Austria)

The following report was presented by the chairman and approved without comment: Chairman's Report, 1978-80. This period since the 1978 meeting of the I.M.A. in Novosibirsk was one of significant changes, including new C.O.M. officers, formation of an Editorial Committee for the C.O.M. Quantitative Data File, and the formation of three other committees on automation, quantitative color, and sulfosalts, respectively. In Novosibirsk it was decided that the new C.O.M. Chairman would solicit a postal vote concerning the desirability of a proposed new journal on "Ore Mineralogy" to be published by Elsevier Publishing Company. This was done and it was unanimously decided that such a journal was not needed at this time. Elsevier was so informed by the Chairman, and their proposal for the new journal was withdrawn. A meeting entitled ~ Perspectives in Ore Microscopy" was convened by the Chairman to elicit new thoughts and practical applications in the field and was held in conjunction with an informal meeting of the C.O.M. at the Department of Mineralogy and Petrology at Cambridge, England, on July 1979. Professor Eugene N. Cameron (U.S.), Professor Hugh Eales (South Africa), Dr. B.F. Leonard (U.S.), and Professor Willem Uytenbogaardt (Netherlands) gave invited presentations. Views expressed particularly accented the need for utilitarian aspects of applied ore microscopy, and the usefulness of qualitative and quantitative information which could be disseminated to academic government, and commercial institutions for use in applied ore microscopy. A survey conducted by Professor Uytenbogaardt revealed that developing countries are especially interested in this kind of information. Nearly all of the 200 copies of the First Issue of the I.M.A./C.O.M. Quantitative Data File published in 1977 have been sold. The Editorial Policy Report for the Second Issue of the I.M.A./C.O.M. Quantiative Data File and the revised Symbols Report are near completion and these two documents will be published within the next year. The Second Issue will provide substantially more chemical, physical, and X-ray diffraction information on each card and these data will be highly amenable to computerized handling. As a result of the previous international experiment on reflectance measurement, it is suggested that experimental investigation of light conditions in reflectance measurement with the microscope-photometer be undertaken and coordinated by a committee on reflectance measurement. Working Group on Gem Materials

Chairman: Secretary:

I. Sunagawa (Japan) S. Savkevieh (U.S.S.R.)

Oral presentation by the chairman was approved without comment. Working Group on Inclusions in Minerals

Chairman : Secretary :

G. Deicha

The following report was presented by the chairman and approved without comment: Since the 11th I.M.A. Meeting 1978 in Novosibirsk, in the course of preparatory talks as well as in the course of discussions at Session 4 "Magmatic Liquids trapped in Crystals" organized by R. Clocchiatti and at the meeting of the Working Group during the present 12th General Meeting at Orleans, a very broad range of questions concerning inclusion has been considered. The following points had been stressed among others: Relationship to the already existing "Commission on ore forming fluids on inclusions" (C.O.F.F.I.): created by D. Deicha, N.P. Ermakov, and E. Roedder at the XXIIth session of the International Geological Congress (Copenhagen 1960) and approved by I.A.G.O.D. in 1964, this Commission deals chiefly with "Thermobarogeochemistry". As G. Deicha is now the acting secretary of C.O.F.F.I., a fair cooperation could be arranged and will be discussed at the next meeting to be held at the I.G.C. in Paris on July 7th-10th and 16th, 1980. 9 BibliograpJ~ical abstracting: As editor of "Fluid Inclusion Research", E. Roedder agrees to the broadening of the editorial board, especially concerning the abstracting of papers on melts and other magrnatic inclusions. R. Clocchiatti is proposed to coordinate this field. 9 Publication of text books: The new book of N.P. Ermakov on "Thermobarogeochemistry" (1979) is presented. Preparations for French and English translations are made. 9 Teaching in the field of inclusions: It appears that the actual level of University and Mining School teaching varies from place to place. More information is needed from the "Teaching Commission" of I.M.A. 9 Regional meetings: Colloquia, in the field of interest of the working group, had been already held in U.S.S.R. (8 meetings) and in Western Europe (Bern 1969, Milano 1973, Paris 1975, Durham 1976, Karlsruhe 1979). 9 Organisation of special groups within national Mineralogical Societies." In the U.S.S.R. such a group does exist since more than twenty years. In France a special "Group des Inclusions" works since 1975 in the "Soci6t6 frangaise de Min~ralogie et de Cristallographie". In Germany, a similar group inside the "Deutsche Mineralogische Gesellschaft" has been considered at the Colloquia held in Karlsruhe (February 1979)~

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Working Group on Transmission Electron Microscopy Applied to Mineralogy Chairman: Secretary:

N. Morimoto C. Willaime

The following report was presented by the chairman. The delegates approved the modified title: "Electron Microscopy appima to Mineralogy". The working group on Transmission Electron Microscopy Applied to Mineralogy was created during the l lth I.M.A. meeting in Novosibirsk with N. Morimoto as chairman and C. Willaime as secretary. A symposium on Application of Electron Microscopy to Mineralogy was held during the Orl6ans I.M.A. meeting. With presentation of five invited papers and twenty-four papers in poster sessions, the symposium was successful. The first meeting of the I.M.A. working group on Transmission Electron Microscopy Applied to Mineralogy was held on Saturday July 5th, 1980. The working group members suggest: 1. suggest: a further two years' existence for the working group with a title modified as follows: "Electron Microscopy Applied to Mineralogy". The aim of the group is to promote all new techniques related to electron microscopy in their applications to mineral studies. 2. suggest: the organisation of a symposium devoted partly to the application of electron microscopy to a group of minerals and partly to new improvements in electron microscopy techniques during the next I.M.A. meeting in 1982. 3. suggest: an exchange of information on international and national meetings on Electron Microscopy between members of the working group, to encourage the use of Electron Microscopy in the study of minerals by mineralogists and petrologists in each country. 4. suggest: Professor N. Moritomo and C. Willaime be appointed as chairman and secretary of the group for the next two years.

Working Group on Thermodynamics of Minerals Chairman: Secretary:

L.L. Perchuk (U.S.S.R.) KK. Saxena (U.S.A.)

Though approved by the council in 1978, it was overlooked to establish this working group at the latest session of the Business Meeting of the 1l th General Meeting in Novosibirsk. The delegates decided unanimously to establish the "Working Group on Thermodynamics of Minerals" and confirmed the Chairman and Secretary. Papers Presented at the Xlth Meeting in Novosibirsk Are published in 9 volumes available on order through international booksellers: 1. "Space mineralogy'. 2. "Gem stones". 3. "Electron probe microanalysis in mineralogy'. 4. "Inhomogeneities in mineralogy and crystal growth'. 5. "Sulphosalts, platinum minerals and ore microscopy". 6. "Experimental mineralogy". 7. "Mineralogic criteria of connection of acid magmatism and ore mineralization'. 8. "Rock-forming minerals". 9. "Scientific bases and practical use of tipomorphism of minerals". With the closing remarks, the President of I.M.A., Dr. C. Gnillemin, expressed his thanks to all people, and organizations who have been active in preparation and arrangement of the meeting, with special thanks to the University of Orleans, to the Director General of B.R.G.M., P.-H. Bourrelier, to the Vice-President of the Organizing Committee, Professor Gabis, and his staff, to Martine Lagache and Mich61e Rogue - and to all the 350 participants.

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