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Creedite and Amethyst Physical Properties


Amethyst and Creedite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
insoluble in common solvents   

Durability
Not Available   
Not Available   

Specific Gravity
2.70   
2.65   

Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Perfect on {100}   
Indiscernible   

Mohs Hardness
4.5   
7   

Chemical Composition
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.   
SiO2   

Optical Properties >>
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Creedite and Amethyst Chemical Formula

While comparing Creedite and Amethyst 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 Amethyst chemical formula.

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Creedite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Creedite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Creedite is 2.65 whereas that of Amethyst is 2.65.

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