Grossular Garnet and Staurolite Physical Properties

Grossular Garnet

Staurolite

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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

3.63.7-3.8

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

None

Distinct on {010}

1.7 Mohs Hardness

6.5-7.57-7.5

2 10

1.8 Chemical Composition

Ca₃Al₂Si₃O₁₂

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

Grossular Garnet and Staurolite Chemical Formula

While comparing Grossular Garnet 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 Grossular Garnet and Staurolite chemical formula.

Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

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Grossular Garnet and Staurolite Specific Gravity

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