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Fluorapatite and Astrophyllite Physical Properties


Astrophyllite and Fluorapatite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.1-3.25   
3.2-3.4   

Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)   
Uneven, Brittle, Metallic   

Cleavage
Indistinct   
Perfect on [001] imperfect on [100]   

Mohs Hardness
5   
3   

Chemical Composition
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)   
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Fluorapatite and Astrophyllite Chemical Formula

While comparing Fluorapatite and Astrophyllite 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 Fluorapatite and Astrophyllite chemical formula.

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Fluorapatite and Astrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorapatite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorapatite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Fluorapatite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.

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