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Datolite
Datolite
☒

Swiss blue topaz
Swiss blue topaz
☒



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Datolite
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Swiss blue topaz
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.90-3.00
Conchoidal, Uneven
None
5-5.5
CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
-9999
-
Indiscernible
-9999
Al2SiO4(F,OH)2