Summary
This is the final report on the nomenclature of pyroxenes by the Subcommittee on Pyroxenes established by the Commission on New Minerals and Mineral Names of the International Mineralogical Association. The recommendations of the Subcommittee as put forward in this report have been formally accepted by the Commission. Accepted and widely used names have been chemically defined, by combining new and conventional methods, to agree as far as possible with the consensus of present use. Twenty names are formally accepted, among which thirteen are used to represent the end-members of definite chemical compositions. In common binary solid-solution series, species names are given to the two end-members by the “50% rule”. Adjectival modifiers for pyroxene mineral names are defined to indicate unusual amounts of chemical constituents. This report includes a list of 105 previously used pyroxene names that have been formally discarded by the Commission.
Zusammenfassung
Diese Arbeit über die Nomenklatur der Pyroxene ist der Endbericht eines Unterkomitees der Commission on New Minerals und Mineral Names der International Mineralogical Association. Die in dieser Arbeit vorgelegten Empfehlungen des Unterkomitees wurden von der Kommission angenommen. Akzeptierte und häufig verwendete Namen wurden unter Verwendung neuer und konventioneller Methoden und unter möglichst großer Übereinstimmung mit dem derzeitigen Gebrauch chemisch definiert. Zwanzig Namen wurden als bindend angenommen, von denen dreizehn Endglieder mit chemisch genau definierten Zusammensetzungen sind. Für gewöhnlich wurden die Namen von zwei Endgliedern einer binären Mischkristallreihe durch Anwendung der “50% Regel” ermittelt. Zur Darstellung ungewöhnlicher chemischer Zusammensetzungen wurden den Pyroxennamen ergänzende Eigenschaftswörter beigefügt. 105 ursprünglich verwendete Namen von Pyroxenen wurden bereits früher von der Kommission ausgesondert und sind in diesem Bericht aufgelistet.
Similar content being viewed by others
References
Bailey SW (1977) Report of the IMA-IUCr joint committee on nomenclature. Am Min 62: 411–415
Bokij GB, Ginzburg JV (1985) The systematics of mineral species in pyroxene family. Trans IGG Academy of Sciences, Novosibirsk 610: 12–35
Cameron M, Papike JJ (1981) Structural and chemical variations in pyroxenes. Am Min 66: 1–50
Chester AH (1886) Catalogue of minerals. John Wiley and Sons, New York
Cosca MA, Peacor DR (1987) Chemistry and structure of esseneite (CaFe3+AlSi2O6), a new pyroxene produced by pyrometamorphism. Am Min 72: 148–156
Curtis LW, Gittins J (1979) Aluminous and titaniferous clinopyroxenes from regionally metamorphosed agpaitic rocks in central Labrador. J Petrol 20: 165–186
Dana ES (1892) The system of mineralogy, 6th edition. John Wiley and Sons, New York
Deer WA, Howie RA, Zussman J (1963) Rock-forming minerals. Vol 2, First ed. Singlechain silicates. Longman, Gren and Co LTD, London
——, ——, —— (1978) Rock-forming minerals, Vol 2 A, Second ed, Single-chain silicates. Longman, London and John Wiley and Sons Inc, New York
De Vine JD, Sigurdsson H (1980) Garnet-fassaite calcsilicate nodule from La Soufriere, St. Vincent. Am Min 65: 302–305
Dowty E, Clark JR (1973) Crystal structure refinement and optical properties of a Ti3+ fassaite from the Allende meteorite. Am Min 58: 230–240
Essene EJ, Fyfe WS (1967) Omphacite in California metamorphic rocks. Contrib Mineral Petrol 15: 1–23
—— (1987) Petedunnite (CaZnSi2O6), a new zinc clinopyroxene from Franklin, New Jersey, and phase equilibria for zincian pyroxenes. Am Min 72: 157–166
Ford WE (1932) A textbook of mineralogy. John Wiley and Sons, Inc, New York
Jaffe HW, Jaffe EB, Tracy RJ (1978) Orthoferrosilite and other iron-rich pyroxenes in microperthite gneiss of the Mount Marcy area, Adirondack Mountains. Am Min 63: 116–136
Kobayashi H (1977) Kanoite, (Mn+ Mg)2[Si2O6], a new clinopyroxene in the metamorphic rock from Tatehira, Oshima Peninsula, Hokkaido, Japan. J Geol Soc Jap 83: 537–542
Leake BE, Winchell H (1978) Nomenclature of amphiboles. Am Min 63: 1023–1052
Mason B (1974) Aluminum-titanium-rich pyroxenes, with special reference to the Allende meteorite. Am Min 59: 1198–1202
Mellini M, Merlino S, Orlandi P, Rinaldi R (1982) Cascadite and jervisite, two new scandium silicates from Baveno, Italy. Am Min 67: 599–603
Morimoto N, Kitamura M (1983) Q-J diagram for classification of pyroxenes. J Jap Assoc Mineral Petrol Econ Geol 78: 141 (in Japanese)
Nickel EH, Mandarino JA (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names, and guidelines on mineral nomenclature. Can Min 25: 353–377
Papike JJ (ed) (1969) Pyroxenes and Amphiboles: crystal chemistry and phase petrology. Mineralogical Society of America, Special Paper, No 2
Petersen EU, Anovitz LM, Essene EJ (1984) Donpeacorite, (Mn,Mg)MgSi2O6, a new orthopyroxene and its proposed phase relations in the system MnSiO3-MgSiO3-FeSiO3. Am Min 69: 472–480
Prewitt CT (ed) (1980) Reviews in mineralogy, 7. Pyroxenes. Mineralogical Society of America, Washington, DC
Robinson P (1980) The composition space of terrestrial pyroxenes-Internal and external limits. In:Prewitt CT (ed) Reviews in Mineralogy, 7. Pyroxenes. Mineralogical Society of American, Washington, DC, pp 419–494
Schaller WT (1930) Adjectival ending of chemical elements used as modifiers to mineral names. Am Min 15: 566–574
Strunz H (1970) Mineralogische Tabellen, 5. Auflage. Akademische Verlagsgesellschaft Geest and Portig KG, Leipzig
Tracy RJ, Robinson P (1977) Zonal titanian augite in alkali olivine basalt from Tahiti and the nature of titanium substitutions in augite. Am Min 62: 634–645
Tschermak G (1897) Lehrbuch der Mineralogie. Alfred Hölder, Wien
Vieten K, Hamm HM (1978) Additional notes “On the calculation of the crystal chemical formula of clinopyroxenes and their contents of Fe3+ from microprobe analyses.” Neues Jahrbuch für Mineralogie, Monatshefte, pp 71–83
Winchell AN, Winchell H (1951) Elements of optical mineralogy. John Wiley and Sons, Inc, New York
Author information
Authors and Affiliations
Additional information
With 7 figures
Rights and permissions
About this article
Cite this article
Morimoto, N. Nomenclature of Pyroxenes. Mineralogy and Petrology 39, 55–76 (1988). https://doi.org/10.1007/BF01226262
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01226262