Fuchsite and Kyanite Physical Properties

Fuchsite

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

2.77-2.883.53-3.65

1 7.18

1.5 Fracture

Uneven

Splintery, Brittle, Metallic

1.6 Cleavage

Perfect basal

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

1.7 Mohs Hardness

2.54-7

2 10

1.8 Chemical Composition

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

Not Available

Fuchsite and Kyanite Chemical Formula

While comparing Fuchsite 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 Fuchsite and Kyanite chemical formula.

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

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Fuchsite Vs Hackmanite

Fuchsite and Kyanite Specific Gravity

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