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Serpentine
Serpentine

Sardonyx
Sardonyx



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Serpentine
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Sardonyx
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.44-2.62
Uneven
Indiscernible
2.5-5.5
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
 
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2Ulrich Henn and Claudio C.