Chalcedony and Ludlamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.1-3.2
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Absent
Vitreous, pearly on cleavage
Chemical Composition
SiO2
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Ludlamite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Ludlamite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.