Mottramite and Apophyllite Physical Properties

Mottramite

Apophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.92.30-2.50

1 7.18

1.5 Fracture

Sub-Conchoidal, Brittle, Metallic

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None observed

Perfect on (001)

1.7 Mohs Hardness

34.5-5

2 10

1.8 Chemical Composition

Not Available

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

Mottramite and Apophyllite Chemical Formula

While comparing Mottramite 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 Mottramite and Apophyllite chemical formula.

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

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Mottramite and Apophyllite Specific Gravity

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