Gedrite and Chromite Physical Properties

Gedrite

Chromite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.15-3.2594.5-4.8

1 7.18

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Fracture

Uneven

Cleavage

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

None, parting may develop along {111}

Mohs Hardness

5.5-65.5

2 10

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Chemical Composition

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

Fe++Cr2O4

Gedrite and Chromite Chemical Formula

While comparing Gedrite and Chromite 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 Gedrite and Chromite chemical formula.

Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Chromite- Fe++Cr2O4

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Gedrite and Chromite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Chromite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Chromite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 4.5-4.8 whereas that of Chromite is 4.5-4.8.