Zoisite and Pyrope Almandine Physical Properties

Zoisite

Pyrope Almandine

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.20-3.503.62-4.20

1 7.18

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Fracture

Uneven, Conchoidal, Even

Cleavage

Perfect {010} imperfect {100}

None

Mohs Hardness

6-77-7.5

2 10

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Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

Zoisite and Pyrope Almandine Chemical Formula

While comparing Zoisite and Pyrope Almandine 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 Zoisite and Pyrope Almandine chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

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Zoisite and Pyrope Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Pyrope Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Pyrope Almandine Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 3.62-4.20 whereas that of Pyrope Almandine is 3.62-4.20.