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Strontianite
Strontianite

Fluor buergerite
Fluor buergerite



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Strontianite
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Fluor buergerite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.63-3.79
Uneven, Conchoidal
{110} Good
3.5
SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references
 
-
-
-
3.31
-
Indiscernible
-9999
NaFe 3+ 3 Al 6 (BO 3 ) 3 Si 6 O 18 (O,F,OH) 4 Anthony et al, Handbook of mineralogy (2001)