Gedrite and Zoisite Physical Properties

Gedrite

Zoisite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.15-3.2593.20-3.50

1 7.18

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Fracture

Uneven, Conchoidal, Even

Cleavage

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

Perfect {010} imperfect {100}

Mohs Hardness

5.5-66-7

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)

Ca₂Al₃(SiO₄)₃(OH)

Gedrite and Zoisite Chemical Formula

While comparing Gedrite and Zoisite 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 Zoisite 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 Zoisite- Ca₂Al₃(SiO₄)₃(OH)

Compare Brown Gemstones

Gedrite Vs Magnetite

Gedrite Vs Manganaxinite

Gedrite Vs Mellite

Gedrite and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gedrite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.