Faustite and Diaspore Physical Properties

Faustite

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.93.30-3.40

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

{???} Indistinct

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

1.7 Mohs Hardness

4.56.5-7

2 10

1.8 Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Faustite and Diaspore Chemical Formula

While comparing Faustite 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 Faustite and Diaspore chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Faustite and Diaspore Specific Gravity

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