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Apophyllite KF and Labradorite Physical Properties


Labradorite and Apophyllite KF Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.33-2.37   
2.69-2.72   

Fracture
Uneven, Brittle, Uneven, Brittle, Uneven   
Uneven, Conchoidal, Gems, Sixth Edition (2006)   

Cleavage
Perfect on {001}, imperfect on {110}   
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}   

Mohs Hardness
4.5-5   
6-6.5   

Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)   
(Na,Ca)1-2Si3-2O8   

Optical Properties >>
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Apophyllite KF and Labradorite Chemical Formula

While comparing Apophyllite KF and Labradorite 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 Apophyllite KF and Labradorite chemical formula.

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Apophyllite KF and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.

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