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Emerald
Emerald

Chondrodite
Chondrodite



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Emerald
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Chondrodite
1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Hard
Not Available
1.4 Specific Gravity
2.67-2.783.10-3.20
Amber
1 7.18
3.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
3.6 Cleavage
Imperfect on the [0001]
Poor to good on (001)
3.7 Mohs Hardness
7.5-86-6.5
Amber
2 10
3.14 Chemical Composition
Be3Al2SiO6
(Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich Henn and Claudio C.