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Ludlamite and Creedite Physical Properties


Creedite and Ludlamite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.1-3.2   
2.70   

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

Cleavage
Vitreous, pearly on cleavage   
Perfect on {100}   

Mohs Hardness
3-4   
4.5   

Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.   

Optical Properties >>
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Ludlamite and Creedite Chemical Formula

While comparing Ludlamite and Creedite 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 Ludlamite and Creedite chemical formula.

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Ludlamite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.70 whereas that of Creedite is 2.70.

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Green Gemstones


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