Kyanite and Serandite Physical Properties

Kyanite

Serandite

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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

3.53-3.653.52

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

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

{100} Perfect, {001} Perfect

1.7 Mohs Hardness

4-75-5.5

2 10

1.8 Chemical Composition

Not Available

Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

Kyanite and Serandite Chemical Formula

While comparing Kyanite and Serandite 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 Serandite chemical formula.

Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

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Kyanite and Serandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Serandite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 3.52 whereas that of Serandite is 3.52.