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Wernerite
Wernerite
☒

Pietersite
Pietersite
☒



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Wernerite
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Pietersite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.50-2.80
-
Perfect
5-6.5
Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)
 
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-
-
-9999
-
None
5
H2O+Fe2+,H3O2+Fe3+Si4O12

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