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Piemontite
Piemontite
☒

Hauyne
Hauyne
☒



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Piemontite
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Hauyne
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
-9999
Uneven, Splintery
[001] good, [100] distinct
6-6.5
Ca2Al3(SiO4)(Si2O7)O(OH)
 
Brittle
Gelatinises in acids
-
2.4-2.5
Uneven, Conchoidal
Distinct on {110}
5-6
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

Compare Red Gemstones

Red Gemstones

Carnallite
Carnallite
Bornite
Bornite
Bastnasite
Bastnasite
Hauyne
Nickeline
Hauyne Vs Nickeline
Hauyne
Polyhalite
Hauyne Vs Polyhalite
Hauyne
Vanadinite
Hauyne Vs Vanadinite

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