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Legrandite and Calcite Physical Properties


Calcite and Legrandite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
3.98-4.04   
2.67-2.73   

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

Cleavage
Imperfect, poor one {100}   
Perfect on [10 1 1] three directions with angle of 74° 55   

Mohs Hardness
4.5-5   
3   

Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
CaCO 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Legrandite and Calcite Chemical Formula

While comparing Legrandite and Calcite 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 Legrandite and Calcite chemical formula.

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Legrandite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.

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