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Andradite
Andradite
☒

Sardonyx
Sardonyx
☒



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Andradite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

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Anthophyllite
Sardonyx Vs Anthophyllite
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Antigorite
Sardonyx Vs Antigorite

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