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Goshenite
Goshenite

Dumortierite
Dumortierite



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Goshenite
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Dumortierite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.60-2.90
Conchoidal
3,1 basal
7.5-8
Be3Al2SiO6
 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18