Hemimorphite and Zoisite Physical Properties

Hemimorphite

Zoisite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.503.20-3.50

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

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

1.6 Cleavage

Perfect on {110}, poor on {101}, {001} rare

Perfect {010} imperfect {100}

1.7 Mohs Hardness

56-7

2 10

1.8 Chemical Composition

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca₂Al₃(SiO₄)₃(OH)

Hemimorphite and Zoisite Chemical Formula

While comparing Hemimorphite 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 Hemimorphite and Zoisite chemical formula.

Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)

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Hemimorphite and Zoisite Specific Gravity

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