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Calcite and Hodgkinsonite Physical Properties


Hodgkinsonite and Calcite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.67-2.73   
4.06-4.08   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal   
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   

Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55   
{???} Perfect   

Mohs Hardness
3   
4.5-5   

Chemical Composition
CaCO 3Ulrich Henn and Claudio C.   
Mn2+ Zn 2SiO 4(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Calcite and Hodgkinsonite Chemical Formula

While comparing Calcite and Hodgkinsonite 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 Calcite and Hodgkinsonite chemical formula.

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Calcite and Hodgkinsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Hodgkinsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Hodgkinsonite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 4.06-4.08 whereas that of Hodgkinsonite is 4.06-4.08.

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