Gedrite and Benitoite Physical Properties

Gedrite

Benitoite

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Physical Properties

Tenacity

Solubility

Insoluble: HCl

Durability

Specific Gravity

3.15-3.2593.61-3.68

1 7.18

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Fracture

Conchoidal

Cleavage

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

[10 1 1] poor

Mohs Hardness

5.5-66-6.5

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)

BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Gedrite and Benitoite Chemical Formula

While comparing Gedrite and Benitoite 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 Benitoite 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 Benitoite- BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

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Gedrite and Benitoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Benitoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Benitoite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 3.61-3.68 whereas that of Benitoite is 3.61-3.68.