Kyanite and Dallasite Physical Properties

Kyanite

Dallasite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.53-3.652.58-2.91

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

4-76.5-7

2 10

1.8 Chemical Composition

Not Available

Kyanite and Dallasite Chemical Formula

While comparing Kyanite and Dallasite 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 Kyanite and Dallasite chemical formula.

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Kyanite and Dallasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.