Scapolite and Staurolite Physical Properties

Scapolite

Staurolite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.58-2.74

ConchoidalWalter Schumann, Splintery

{100} Distinct, {110} Distinct

5.5-6

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

Brittle

3.7-3.8

Subconchoidal, Conchoidal

Distinct on {010}

7-7.5

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

Scapolite and Staurolite Chemical Formula

While comparing Scapolite 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 Scapolite and Staurolite chemical formula.

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Scapolite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scapolite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scapolite Vs Staurolite during the identification of gemstone. Specific gravity of Scapolite is whereas that of Staurolite is .