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Gypsum and Ludlamite Physical Properties


Ludlamite and Gypsum Physical Properties


Physical Properties

Tenacity
Flexible   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.20-2.40   
3.1-3.2   

Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)   
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)   

Cleavage
Perfect on {010}, distinct on {100}   
Vitreous, pearly on cleavage   

Mohs Hardness
2   
3-4   

Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)   
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Gypsum and Ludlamite Chemical Formula

While comparing Gypsum and Ludlamite 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 Gypsum and Ludlamite chemical formula.

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Gypsum and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.

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