Piemontite and Apophyllite Physical Properties

Piemontite

Apophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.30-2.50

1 7.18

1.5 Fracture

Uneven, Splintery

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

[001] good, [100] distinct

Perfect on (001)

1.7 Mohs Hardness

6-6.54.5-5

2 10

1.8 Chemical Composition

Not Available

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Piemontite and Apophyllite Chemical Formula

While comparing Piemontite and Apophyllite 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 Piemontite and Apophyllite chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Piemontite and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Piemontite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Piemontite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.