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Anhydrite
Anhydrite

Mottramite
Mottramite



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Anhydrite
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Mottramite

Anhydrite and Mottramite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-2.985.9
Amber
1 7.18
1.5 Fracture
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Sub-Conchoidal, Brittle, Metallic
1.6 Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
None observed
1.7 Mohs Hardness
3.53
Amber
2 10
1.8 Chemical Composition
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
Not Available

Anhydrite and Mottramite Chemical Formula

While comparing Anhydrite and Mottramite 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 Anhydrite and Mottramite chemical formula.

  • Chemical formula of Anhydrite- CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
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Anhydrite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 5.9 whereas that of Mottramite is 5.9.