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PyroxferroitePyroxferroite (Fe+2,Mn,Ca)SiO3 is a silicate of the pyroxene group with a triclinic crystal structure. It has a hardness between 4.5 and 5.5, and is yellowish in colour. Additional recommended knowledgeOccurrencePyroxferroite was first discovered in lunar rock samples from the Sea of Tranquillity during the Apollo missions between 1969 and 1972. Later, it was found in lunar and martian meteorites. It also occurs on Earth and has been found in the Isanago mine, in Kyoto Prefecture, Japan, Karnataka in South India and in northwest Queensland, Australia. NamePyroxferroite is named from pyroxene and Latin ferrum iron, as the iron-rich analogue of pyroxmangite. Categories: Iron minerals | Manganese minerals | Calcium minerals | Silicate minerals |
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Pyroxferroite". A list of authors is available in Wikipedia. |