Aquamarine and Staurolite Physical Properties

Aquamarine

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

2.66-2.803.7-3.8

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

3,1 basal

Distinct on {010}

1.7 Mohs Hardness

7.5-87-7.5

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

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

Aquamarine and Staurolite Chemical Formula

While comparing Aquamarine 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 Aquamarine and Staurolite chemical formula.

Chemical formula of Aquamarine- Be₃Al₂SiO₆
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

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Aquamarine and Staurolite Specific Gravity

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