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Witherite
Witherite

Ammolite
Ammolite



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Witherite
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Ammolite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.27-4.35
Conchoidal
{010} Distinct
3-3.5
BaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
2.75-2.80
Uneven, Granular
no true cleavage
4
CaCO3