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Chrysoprase
Chrysoprase

Pyrope Spessartine
Pyrope Spessartine



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Chrysoprase
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Pyrope Spessartine
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.58-2.64
-
None
6.5-7
SiO2 (with a high level of nickel impurities )
 
-
-
-
3.62-4.33
Uneven
None
7-7.5
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)