Home
×

Andradite
Andradite

Pargasite
Pargasite



ADD
Compare
X
Andradite
X
Pargasite

Andradite and Pargasite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.70-4.10
3.04-3.26
1.5 Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Splintery, Brittle, Uneven
1.6 Cleavage
none
{110} perfect
1.7 Mohs Hardness
6.5-7
5-6
1.8 Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Andradite and Pargasite Chemical Formula

While comparing Andradite 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 Andradite and Pargasite chemical formula.

  • Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Andradite and Pargasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.