Kyanite and Fuchsite Physical Properties

Kyanite

Fuchsite

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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

3.53-3.652.77-2.88

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

Uneven

1.6 Cleavage

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

Perfect basal

1.7 Mohs Hardness

4-72.5

2 10

1.8 Chemical Composition

Not Available

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

Kyanite and Fuchsite Chemical Formula

While comparing Kyanite and Fuchsite 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 Fuchsite chemical formula.

Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

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Kyanite and Fuchsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Fuchsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Fuchsite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.77-2.88 whereas that of Fuchsite is 2.77-2.88.