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Creedite and Erythrite Physical Properties


Erythrite and Creedite Physical Properties


Physical Properties

Tenacity
Brittle   
Sectile   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.70   
3.06   

Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).   

Cleavage
Perfect on {100}   
Perfect on {010}; poor on {100} and { 1 02}.   

Mohs Hardness
4.5   
Not Available   

Chemical Composition
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.   
Co3(AsO4)2•8(H2O)   

Optical Properties >>
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Creedite and Erythrite Chemical Formula

While comparing Creedite and Erythrite 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 Creedite and Erythrite chemical formula.

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Creedite and Erythrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Creedite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Creedite is 3.06 whereas that of Erythrite is 3.06.

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