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Grossular
Grossular

Microcline
Microcline



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Grossular
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Microcline
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.55-3.73
Conchoidal, Uneven
none
7-7.5
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
-
-
-
2.55-2.63
Uneven
{001} Perfect, {010} Good
6-6.5
KAlSi 3O 8Arthur Thomas , Gemstones (2009)