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Obsidian
Obsidian

Apophyllite KF
Apophyllite KF



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Obsidian
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Apophyllite KF

Obsidian and Apophyllite KF Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.35-2.602.33-2.37
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Conchoidal
Uneven, Brittle, Uneven, Brittle, Uneven
1.6 Cleavage
Not Available
Perfect on {001}, imperfect on {110}
1.7 Mohs Hardness
5-5.54.5-5
Amber
2 10
1.8 Chemical Composition
Not Available
(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Obsidian and Apophyllite KF Chemical Formula

While comparing Obsidian and Apophyllite KF physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Obsidian and Apophyllite KF chemical formula.

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  • Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

Obsidian and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Obsidian and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.