Gedrite and Variscite Physical Properties

Gedrite

Variscite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.15-3.2592.42-2.58

1 7.18

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Fracture

Conchoidal, Splintery, ConchoidalWalter Schumann

Cleavage

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

[010] perfect

Mohs Hardness

5.5-64-5

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)

AlPO₄ · 2(H₂O)

Gedrite and Variscite Chemical Formula

While comparing Gedrite and Variscite 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 Variscite 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 Variscite- AlPO₄ · 2(H₂O)

Compare Brown Gemstones

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Gedrite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.