Bustamite and Apophyllite KF Physical Properties

Bustamite

Apophyllite KF

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Partly soluble in HCl.

3.32-3.43

Conchoidal

{100} perfect; {110} and {1 1 0} good; {010} poor

5.5-6

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Brittle

2.33-2.37

Uneven

Perfect on {001}, imperfect on {110}

4.5-5

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Bustamite and Apophyllite KF Chemical Formula

While comparing Bustamite and Apophyllite KF 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 Bustamite and Apophyllite KF chemical formula.

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Bustamite and Apophyllite KF Specific Gravity

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