Legrandite and Pargasite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.98-4.04
3.04-3.26
Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Splintery, Brittle, Uneven
Cleavage
Imperfect, poor one {100}
{110} perfect
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Legrandite and Pargasite Chemical Formula
While comparing Legrandite and Pargasite 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 Legrandite and Pargasite chemical formula.
- Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Legrandite and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Legrandite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.