Ametrine and Staurolite Physical Properties

Ametrine

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

2.653.7-3.8

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Indiscernible

Distinct on {010}

1.7 Mohs Hardness

77-7.5

2 10

1.8 Chemical Composition

SiO₂

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

Ametrine and Staurolite Chemical Formula

While comparing Ametrine 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 Ametrine and Staurolite chemical formula.

Chemical formula of Ametrine- SiO₂
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

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Ametrine and Staurolite Specific Gravity

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