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Emerald
Emerald

Zektzerite
Zektzerite



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Emerald
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Zektzerite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
Hard
2.67-2.78
Uneven, ConchoidalWalter Schumann
Imperfect on the [0001]
7.5-8
Be3Al2SiO6
 
-
-
-
2.79
-
{100} and {010} perfect
6
LiNa(Zr,Ti,Hf)Si 6O 15Ulrich Henn and Claudio C.