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Care

Transparency

Semitransparent - Translucent

Luster

Vitreous, Pearly, Greasy

Prehnite

Locales

Hardness

6-6.5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10

Treatment

Interesting Fact

Chemical Formula

Composition

calcium aluminum silicate hydroxide

Colours

Green
Yellow Green