Verdite and Kyanite Physical Properties

Verdite

Kyanite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-3.03.53-3.65

1 7.18

1.5 Fracture

Not Available

Splintery, Brittle, Metallic

1.6 Cleavage

{110} Good

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

34-7

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

Not Available

Verdite and Kyanite Chemical Formula

While comparing Verdite and Kyanite 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 Verdite and Kyanite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)

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Verdite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Verdite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Verdite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.