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Alunite and Fluorapatite Physical Properties


Fluorapatite and Alunite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.6-2.9   
3.1-3.25   

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

Cleavage
On {0001}, perfect   
Indistinct   

Mohs Hardness
3.5-4   
5   

Chemical Composition
KAl3(SO4)2(OH)6   
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Alunite and Fluorapatite Chemical Formula

While comparing Alunite and Fluorapatite 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 Alunite and Fluorapatite chemical formula.

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Alunite and Fluorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alunite and Fluorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Fluorapatite Optical Properties during the identification of gemstone. Specific gravity of Alunite is 3.1-3.25 whereas that of Fluorapatite is 3.1-3.25.

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Red Gemstones


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