Phenakite and Steatite Physical Properties

Phenakite

Steatite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.982.20-2.80

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

7.5-8Not Available

2 10

1.8 Chemical Composition

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

Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)

Phenakite and Steatite Chemical Formula

While comparing Phenakite and Steatite 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 Steatite chemical formula.

Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Steatite- Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)

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Phenakite and Steatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Steatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Steatite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 2.20-2.80 whereas that of Steatite is 2.20-2.80.