オンファス輝石
1. OmphaciteOmphacite is a member of the pyroxene group of silicate minerals with formula:Si2O6. It is a variably deep to pale green or nearly colorless variety of pyroxene. Omphacite compositions are intermediate between calcium-rich augite and sodium-rich jadeite. It crystallizes in the monoclinic system with prismatic, typically twinned forms, though usually anhedral. Its space group (P2/n) is distinct from that of augite and jadeite (C2/c). It exhibits the typical near 90° pyroxene cleavage.
Read “Omphacite” on English Wikipedia
Read “オンファス輝石” on Japanese Wikipedia
Read “Omphacite” on DBpedia
Read “Omphacite” on English Wikipedia
Read “オンファス輝石” on Japanese Wikipedia
Read “Omphacite” on DBpedia
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