Staurolite and Garnet Physical Properties

Staurolite

Garnet

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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

3.7-3.83.55-4.33

1 7.18

1.5 Fracture

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

Conchoidal, Uneven

1.6 Cleavage

Distinct on {010}

Indistinct

1.7 Mohs Hardness

7-7.56.5-7.5

2 10

1.8 Chemical Composition

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

Garnet is a series of several different minerals with unique chemical formulas.

Staurolite and Garnet Chemical Formula

While comparing Staurolite and Garnet 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 Staurolite and Garnet chemical formula.

Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Garnet- Garnet is a series of several different minerals with unique chemical formulas.

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Staurolite and Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Garnet Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 3.55-4.33 whereas that of Garnet is 3.55-4.33.