Forsterite and Pargasite Physical Properties

Forsterite

Pargasite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.23-3.263.04-3.26

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Splintery, Brittle, Uneven

1.6 Cleavage

Perfect on {010} imperfect on {100}

{110} perfect

1.7 Mohs Hardness

6.5-75-6

2 10

1.8 Chemical Composition

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Forsterite and Pargasite Chemical Formula

While comparing Forsterite 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 Forsterite and Pargasite chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

Forsterite Vs Grossular

Forsterite Vs Hackmanite

Forsterite Vs Grandidierite

Forsterite and Pargasite Specific Gravity

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