Rhodolite and Staurolite Physical Properties

Rhodolite

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

3.843.7-3.8

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

none, may show indistinct parting

Distinct on {010}

1.7 Mohs Hardness

7-7.57-7.5

2 10

1.8 Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

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

Rhodolite and Staurolite Chemical Formula

While comparing Rhodolite 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 Rhodolite and Staurolite chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

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Rhodolite and Staurolite Specific Gravity

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