Phenakite and Diaspore Physical Properties

Phenakite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.983.30-3.40

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}

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

1.7 Mohs Hardness

7.5-86.5-7

2 10

1.8 Chemical Composition

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Phenakite and Diaspore Chemical Formula

While comparing Phenakite 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 Phenakite and Diaspore chemical formula.

Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Phenakite and Diaspore Specific Gravity

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