Humite and Diaspore Physical Properties

Humite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.323.30-3.40

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Poor

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

6-6.56.5-7

2 10

1.8 Chemical Composition

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

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Humite and Diaspore Chemical Formula

While comparing Humite and Diaspore 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 Diaspore chemical formula.

Chemical formula of Humite- (Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Humite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Humite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Humite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Humite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.