すいどうこう
翠銅鉱
1. dioptase
2. DioptaseDioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent to translucent. Its luster is vitreous to sub-adamantine. Its formula is CuSiO3·H2O (also reported as CuSiO22). It has a hardness of 5, the same as tooth enamel. Its specific gravity is 3.28–3.35, and it has two perfect and one very good cleavage directions. Additionally, dioptase is very fragile and specimens must be handled with great care.
Read “Dioptase” on English Wikipedia
Read “翠銅鉱” on Japanese Wikipedia
Read “Dioptase” on DBpedia
Read “Dioptase” on English Wikipedia
Read “翠銅鉱” on Japanese Wikipedia
Read “Dioptase” on DBpedia
Discussions
Log in to talk about this word.