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Fluorapatite
Fluorapatite

Legrandite
Legrandite



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Fluorapatite
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Legrandite

Fluorapatite and Legrandite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.1-3.25
Uneven
Indistinct
5
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
 
Brittle
-
-
3.98-4.04
Conchoidal
Imperfect, poor one {100}
4.5-5
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Fluorapatite and Legrandite Chemical Formula

While comparing Fluorapatite and Legrandite 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 Legrandite chemical formula.

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Fluorapatite and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorapatite and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorapatite Vs Legrandite during the identification of gemstone. Specific gravity of Fluorapatite is whereas that of Legrandite is .