Kyanite and Rhodizite Physical Properties

Kyanite

Rhodizite

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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

3.53-3.653.34-3.44

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

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

{111} Indistinct, {111} Indistinct, {111} Indistinct

1.7 Mohs Hardness

4-78-8.5

2 10

1.8 Chemical Composition

Not Available

(K,Cs)Al 4Be 4(B,Be) 12O 28Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Kyanite and Rhodizite Chemical Formula

While comparing Kyanite and Rhodizite 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 Rhodizite chemical formula.

Chemical formula of Rhodizite- (K,Cs)Al 4Be 4(B,Be) 12O 28Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Kyanite and Rhodizite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Rhodizite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Rhodizite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 3.34-3.44 whereas that of Rhodizite is 3.34-3.44.