Sylvite and Hibschite Physical Properties

Sylvite

Hibschite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.9933.05-3.08

1 7.18

1.5 Fracture

Uneven, Brittle

Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle

1.6 Cleavage

Perfect on [100], [010], [001]

None

1.7 Mohs Hardness

2.56.5

2 10

1.8 Chemical Composition

Not Available

Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Sylvite and Hibschite Chemical Formula

While comparing Sylvite and Hibschite 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 Sylvite and Hibschite chemical formula.

Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

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Sylvite and Hibschite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Hibschite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Hibschite Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 3.05-3.08 whereas that of Hibschite is 3.05-3.08.