Menu
Do You Know?
Care
Transparency
Transparent - Translucent
Luster
Vitreous, Pearly, Greasy
Kyanite
Locales
Hardness
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
Treatment
Interesting Fact
Gallery →
Chemical Formula
Composition
aluminum silicate
Colours
Blue
Green
Grey
