Diaspore and Apophyllite Physical Properties

Diaspore

Apophyllite

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1 Physical Properties

1.1 Tenacity

Very brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.402.30-2.50

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Perfect on (001)

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

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

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

Diaspore and Apophyllite Chemical Formula

While comparing Diaspore and Apophyllite 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 Diaspore and Apophyllite chemical formula.

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

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Diaspore and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Diaspore and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.