Hemimorphite and Fluorite Physical Properties

Hemimorphite

Fluorite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

3.30-3.503.00-3.25

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

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

Octahedral, perfect on {111}, parting on {011}

Mohs Hardness

2 10

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Chemical Composition

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

CaF₂

Hemimorphite and Fluorite Chemical Formula

While comparing Hemimorphite and Fluorite 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 Fluorite 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 Fluorite- CaF₂

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Hemimorphite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hemimorphite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.