Forsterite and Gedrite Physical Properties

Forsterite

Gedrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.23-3.263.15-3.259

1 7.18

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Fracture

Conchoidal

Cleavage

Perfect on {010} imperfect on {100}

Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.

Mohs Hardness

6.5-75.5-6

2 10

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Chemical Composition

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

(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Forsterite and Gedrite Chemical Formula

While comparing Forsterite and Gedrite 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 Gedrite chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

Forsterite Vs Grossular

Forsterite Vs Hayne

Forsterite Vs Hemimorphite

Forsterite and Gedrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Gedrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Gedrite Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 3.15-3.259 whereas that of Gedrite is 3.15-3.259.