Zoisite and Bloodstone Heliotrope Physical Properties

Zoisite

Bloodstone Heliotrope

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.502.55-2.70

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even

Not Available

1.6 Cleavage

Perfect {010} imperfect {100}

Not Available

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

SiO 2Arthur Thomas , Gemstones (2009)

Zoisite and Bloodstone Heliotrope Chemical Formula

While comparing Zoisite and Bloodstone Heliotrope 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 Bloodstone Heliotrope chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Bloodstone Heliotrope- SiO 2Arthur Thomas , Gemstones (2009)

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Zoisite and Bloodstone Heliotrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Bloodstone Heliotrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Bloodstone Heliotrope Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 2.55-2.70 whereas that of Bloodstone Heliotrope is 2.55-2.70.