Chrysoberyl and Staurolite Physical Properties

Chrysoberyl

Staurolite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.69-3.813.7-3.8

1 7.18

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Fracture

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Subconchoidal, Conchoidal

Cleavage

Distinct on {110}, imperfect on {010}, poor on {001}

Distinct on {010}

Mohs Hardness

8.57-7.5

2 10

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Chemical Composition

BeAl ₂ O ₄

(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Chrysoberyl and Staurolite Chemical Formula

While comparing Chrysoberyl and Staurolite 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 Chrysoberyl and Staurolite chemical formula.

Chemical formula of Chrysoberyl- BeAl ₂ O ₄
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Compare Green Gemstones

Chrysoberyl Vs Datolite

Chrysoberyl Vs Demantoid

Chrysoberyl Vs Dioptase

Chrysoberyl and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.