きせき
ピジョン輝石
1. pigeonite
2. PigeonitePigeonite is a mineral in the clinopyroxene group. It has a general formula of(Mg,Fe)Si2O6. The calcium cation fraction can vary from 5% to 25%, with iron and magnesium making up the rest of the cations. Pigeonite crystallizes in the monoclinic system, as does augite, and a miscibility gap exists between the two minerals. At lower temperatures, pigeonite is unstable relative to augite plus orthopyroxene.
Read “Pigeonite” on English Wikipedia
Read “ピジョン輝石” on Japanese Wikipedia
Read “Pigeonite” on DBpedia
Read “Pigeonite” on English Wikipedia
Read “ピジョン輝石” on Japanese Wikipedia
Read “Pigeonite” on DBpedia
Discussions
Log in to talk about this word.