Gedrite and Omphacite Physical Properties

Gedrite

Omphacite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.15-3.2593.16-3.43

1 7.18

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Fracture

Uneven, Conchoidal

Cleavage

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

{110} Good, {110} Good

Mohs Hardness

5.5-65-6

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)

(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Gedrite and Omphacite Chemical Formula

While comparing Gedrite and Omphacite 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 Omphacite 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 Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Compare Brown Gemstones

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Gedrite Vs Mellite

Gedrite and Omphacite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.