Humite and Fluorapatite Physical Properties

Humite

Fluorapatite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.323.1-3.25

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Poor

Indistinct

1.7 Mohs Hardness

6-6.55

2 10

1.8 Chemical Composition

(Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)

Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Humite and Fluorapatite Chemical Formula

While comparing Humite 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 Humite and Fluorapatite chemical formula.

Chemical formula of Humite- (Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Compare Yellow Gemstones

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Humite and Fluorapatite Specific Gravity

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