Mottramite and Hackmanite Physical Properties

Mottramite

Hackmanite

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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

5.9

2.27-2.33

1.5 Fracture

Sub-Conchoidal, Brittle, Metallic

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None observed

Not Available

1.7 Mohs Hardness

5.5-6

1.8 Chemical Composition

Not Available

Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Mottramite and Hackmanite Chemical Formula

While comparing Mottramite and Hackmanite 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 Hackmanite chemical formula.

Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Mottramite and Hackmanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.