Diaspore and Ettringite Physical Properties

Diaspore

Ettringite

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1 Physical Properties

1.1 Tenacity

Very brittle

Not Available

1.2 Solubility

insoluble

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.401.77

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Not Available

1.6 Cleavage

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

Perfect on {10 1 0}

1.7 Mohs Hardness

6.5-72-2.5

2 10

1.8 Chemical Composition

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

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Diaspore and Ettringite Chemical Formula

While comparing Diaspore and Ettringite 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 Ettringite chemical formula.

Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Yellow Gemstones

Diaspore Vs Ettringite

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Diaspore Vs Fayalite

Diaspore and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Diaspore and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 1.77 whereas that of Ettringite is 1.77.