Petoskey Stone and Ludlamite Physical Properties
Tenacity
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Solubility
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Durability
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Specific Gravity
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3.1-3.2
Fracture
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UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
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Vitreous, pearly on cleavage
Chemical Composition
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(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Petoskey Stone and Ludlamite Chemical Formula
While comparing Petoskey Stone 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 Petoskey Stone and Ludlamite chemical formula.
>- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Petoskey Stone and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Petoskey Stone and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petoskey Stone and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Petoskey Stone is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.