Apophyllite and Diaspore Physical Properties

Apophyllite

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

2.30-2.503.30-3.40

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Perfect on (001)

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

1.7 Mohs Hardness

4.5-56.5-7

2 10

1.8 Chemical Composition

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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

Apophyllite and Diaspore Chemical Formula

While comparing Apophyllite 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 Apophyllite and Diaspore chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Apophyllite and Diaspore Specific Gravity

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