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Iddingsite
Iddingsite

Goshenite
Goshenite



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Iddingsite
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Goshenite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.5-2.8
-
{???} Perfect
3
MgO.Fe2O3.3SiO2•4(H2O)
 
-
-
-
2.60-2.90
Conchoidal
3,1 basal
7.5-8
Be3Al2SiO6