Diaspore and Legrandite Physical Properties

Diaspore

Legrandite

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1 Physical Properties

1.1 Tenacity

Very brittle

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.403.98-4.04

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

Imperfect, poor one {100}

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

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Diaspore and Legrandite Chemical Formula

While comparing Diaspore and Legrandite 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 Legrandite chemical formula.

Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Diaspore and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Diaspore and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.