Ludlamite and Pyrophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.1-3.2
2.65-2.90
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Vitreous, pearly on cleavage
{001} Perfect
Mohs Hardness
3-4
Not Available
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ludlamite and Pyrophyllite Chemical Formula
While comparing Ludlamite and Pyrophyllite 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 Pyrophyllite chemical formula.
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ludlamite and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ludlamite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.