Forsterite and Staurolite Physical Properties

Forsterite

Staurolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.23-3.263.7-3.8

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Perfect on {010} imperfect on {100}

Distinct on {010}

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

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

(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Forsterite and Staurolite Chemical Formula

While comparing Forsterite and Staurolite 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 Staurolite chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Compare Green Gemstones

Forsterite Vs Grossular

Forsterite Vs Hackmanite

Forsterite Vs Grandidierite

Forsterite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.