Phlogopite and Variscite Physical Properties

Phlogopite

Variscite

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.852.42-2.58

1 7.18

1.5 Fracture

None, Uneven

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

Perfect basal (001)

[010] perfect

1.7 Mohs Hardness

2-2.54-5

2 10

1.8 Chemical Composition

Not Available

AlPO₄ · 2(H₂O)

Phlogopite and Variscite Chemical Formula

While comparing Phlogopite and Variscite 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 Phlogopite and Variscite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Phlogopite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.