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Narsarsukite
Narsarsukite
☒

Alexandrite
Alexandrite
☒



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Narsarsukite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.72-2.83
Uneven
Good on {100} and {110}
6-7
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
 
-
-
-
3.69-3.81
-
1,1 ; 3,2.
8.5
BeAl 2 O 4

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Alexandrite Vs Pargasite

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