Sylvite and Feldspar Physical Properties

Sylvite

Feldspar

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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

1.9932.56-2.75

1 7.18

1.5 Fracture

Uneven, Brittle

Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

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

two or three

1.7 Mohs Hardness

2.56-6.5

2 10

1.8 Chemical Composition

Not Available

Sylvite and Feldspar Chemical Formula

While comparing Sylvite and Feldspar 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 Feldspar chemical formula.

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Sylvite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.