Cordierite and Scapolite Physical Properties

Cordierite

Scapolite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.57-2.66

Subconchoidal, Conchoidal

Fair on {100}, poor on {001} and {010}

7-7.5

Mg2Al4Si5O18

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

Cordierite and Scapolite Chemical Formula

While comparing Cordierite and Scapolite 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 Cordierite and Scapolite chemical formula.

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Cordierite and Scapolite Specific Gravity

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