Nomenclature of amphiboles: Additions and revisions to the international mineralogical association's 1997 recommendations

Bernard E. Leake; Alan R. Woolley; William D. Birch; Ernst A.J. Burke; Giovanni Ferraris; Joel D. Grice; Frank C. Hawthorne; Hanan J. Kisch; Vladimir G. Krivovichev; John C. Schumacher; Nicholas C.N. Stephenson; Eric J.W. Whittaker

doi:10.2113/gscanmin.41.6.1355

Nomenclature of amphiboles: Additions and revisions to the international mineralogical association's 1997 recommendations

Bernard E. Leake, Alan R. Woolley, William D. Birch, Ernst A.J. Burke, Giovanni Ferraris, Joel D. Grice, Frank C. Hawthorne, Hanan J. Kisch, Vladimir G. Krivovichev, John C. Schumacher, Nicholas C.N. Stephenson, Eric J.W. Whittaker

Department of Earth and Environmental sciences

Research output: Contribution to journal › Article › peer-review

146 Scopus citations

Abstract

The introduction of a fifth group of amphiboles, the Na-Ca-Mg-Fe-Mn-Li group, defined by 0.50 < ^B(Mg.Fe²⁺,Mn²⁺,Li) < 1.50 and 0.50 ≤ ^B(Ca,Na) ≤ 1.50 atoms per formula unit, with members whittakerite and ottoliniite, has been required by recent discoveries of ^B(Li,Na) amphiboles. These, and other new discoveries, such as sodicpedrizite (which is herein slightly, but significantly, changed from the original idealized formula), necessitate amendments to the IMA 1997 definitions ofthe Mg-Fe-Mn-Li, calcic, sodic-calcic and sodic groups. The discovery of obertiite and the finding of an incompatibility in the IMA 1997 subdivision of the sodic group require further amendments within the sodic group. All these changes, which have IMA approval, are summarized.

Original language	English GB
Pages (from-to)	1355-1362
Number of pages	8
Journal	Canadian Mineralogist
Volume	41
Issue number	6
DOIs	https://doi.org/10.2113/gscanmin.41.6.1355
State	Published - 1 Jan 2003

Keywords

Amphibole nomenclature
Ottoliniite
Sodicpedrizite
Whittakerite

ASJC Scopus subject areas

Geochemistry and Petrology

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10.2113/gscanmin.41.6.1355

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Leake, B. E., Woolley, A. R., Birch, W. D., Burke, E. A. J., Ferraris, G., Grice, J. D., Hawthorne, F. C., Kisch, H. J., Krivovichev, V. G., Schumacher, J. C., Stephenson, N. C. N., & Whittaker, E. J. W. (2003). Nomenclature of amphiboles: Additions and revisions to the international mineralogical association's 1997 recommendations. Canadian Mineralogist, 41(6), 1355-1362. https://doi.org/10.2113/gscanmin.41.6.1355

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abstract = "The introduction of a fifth group of amphiboles, the Na-Ca-Mg-Fe-Mn-Li group, defined by 0.50 < B(Mg.Fe2+,Mn2+,Li) < 1.50 and 0.50 ≤ B(Ca,Na) ≤ 1.50 atoms per formula unit, with members whittakerite and ottoliniite, has been required by recent discoveries of B(Li,Na) amphiboles. These, and other new discoveries, such as sodicpedrizite (which is herein slightly, but significantly, changed from the original idealized formula), necessitate amendments to the IMA 1997 definitions ofthe Mg-Fe-Mn-Li, calcic, sodic-calcic and sodic groups. The discovery of obertiite and the finding of an incompatibility in the IMA 1997 subdivision of the sodic group require further amendments within the sodic group. All these changes, which have IMA approval, are summarized.",

keywords = "Amphibole nomenclature, Ottoliniite, Sodicpedrizite, Whittakerite",

author = "Leake, {Bernard E.} and Woolley, {Alan R.} and Birch, {William D.} and Burke, {Ernst A.J.} and Giovanni Ferraris and Grice, {Joel D.} and Hawthorne, {Frank C.} and Kisch, {Hanan J.} and Krivovichev, {Vladimir G.} and Schumacher, {John C.} and Stephenson, {Nicholas C.N.} and Whittaker, {Eric J.W.}",

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Leake, BE, Woolley, AR, Birch, WD, Burke, EAJ, Ferraris, G, Grice, JD, Hawthorne, FC, Kisch, HJ, Krivovichev, VG, Schumacher, JC, Stephenson, NCN & Whittaker, EJW 2003, 'Nomenclature of amphiboles: Additions and revisions to the international mineralogical association's 1997 recommendations', Canadian Mineralogist, vol. 41, no. 6, pp. 1355-1362. https://doi.org/10.2113/gscanmin.41.6.1355

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AU - Leake, Bernard E.

AU - Woolley, Alan R.

AU - Birch, William D.

AU - Burke, Ernst A.J.

AU - Ferraris, Giovanni

AU - Grice, Joel D.

AU - Hawthorne, Frank C.

AU - Kisch, Hanan J.

AU - Krivovichev, Vladimir G.

AU - Schumacher, John C.

AU - Stephenson, Nicholas C.N.

AU - Whittaker, Eric J.W.

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Nomenclature of amphiboles: Additions and revisions to the international mineralogical association's 1997 recommendations

Abstract

Keywords

ASJC Scopus subject areas

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