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Phenakite and Ludlamite Physical Properties


Ludlamite and Phenakite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.90-2.98   
3.1-3.2   

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

Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}   
Vitreous, pearly on cleavage   

Mohs Hardness
7.5-8   
3-4   

Chemical Composition
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
(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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Phenakite and Ludlamite Chemical Formula

While comparing Phenakite 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 Phenakite and Ludlamite chemical formula.

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Phenakite and Ludlamite Specific Gravity

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

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