Gedrite and Foitite Physical Properties

Gedrite

Foitite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.15-3.2593.17

1 7.18

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Fracture

Cleavage

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

None

Mohs Hardness

5.5-67

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)

Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

Gedrite and Foitite Chemical Formula

While comparing Gedrite and Foitite 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 Foitite 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 Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

Compare Brown Gemstones

Gedrite Vs Magnetite

Gedrite Vs Manganaxinite

Gedrite Vs Mellite

Gedrite and Foitite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Foitite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Foitite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 3.17 whereas that of Foitite is 3.17.