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Hardystonite and Ludlamite Physical Properties


Ludlamite and Hardystonite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.396-3.443   
3.1-3.2   

Fracture
Brittle, Metallic   
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)   

Cleavage
[001] good, [100] and [110] fair   
Vitreous, pearly on cleavage   

Mohs Hardness
3-4   
3-4   

Chemical Composition
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)   
(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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Hardystonite and Ludlamite Chemical Formula

While comparing Hardystonite 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 Hardystonite and Ludlamite chemical formula.

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Hardystonite and Ludlamite Specific Gravity

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

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