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Clinothulite
Clinothulite

Gahnospinel
Gahnospinel



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Clinothulite
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Gahnospinel
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Perfect
-9999
Ca2(Mg,Fe)3Al2(SiO4)4(OH)4
 
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-
-
3.65-4.55
Conchoidal
None, but may exhibit slight parting
7.5-8
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)