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Hexagonite
Hexagonite
☒

Apophyllite KF
Apophyllite KF
☒



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Hexagonite
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Apophyllite KF
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.98-3.03
Uneven
[110] perfect; [010] distinct
5-6
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
 
Brittle
-
-
2.33-2.37
Uneven
Perfect on {001}, imperfect on {110}
4.5-5
(K,Na)Ca4Si8O20(F,OH)•8(H2O)