Muscovite and Phenakite Physical Properties

Muscovite

Phenakite

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1 Physical Properties

1.1 Tenacity

Elastic

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.882.90-2.98

1 7.18

1.5 Fracture

Micaceous, Brittle

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

1.6 Cleavage

Perfect on the {001}

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

1.7 Mohs Hardness

2-37.5-8

2 10

1.8 Chemical Composition

KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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

Muscovite and Phenakite Chemical Formula

While comparing Muscovite and Phenakite 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 Muscovite and Phenakite chemical formula.

Chemical formula of Muscovite- KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Muscovite and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Muscovite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Muscovite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Muscovite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.