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Rosasite
Rosasite
☒

Bustamite
Bustamite
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Rosasite
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Bustamite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Effervesces in cold
-
4-4.2
Splintery
Perfect on {100} and {010}
4
CuZn(CO3)(OH)2
 
-
Partly soluble in HCl.
-
3.32-3.43
Conchoidal
{100} perfect; {110} and {1 1 0} good; {010} poor
5.5-6
(Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references