Hemimorphite and Pyrope Physical Properties

Hemimorphite

Pyrope

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.503.62-3.87

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

None

1.7 Mohs Hardness

57-7.5

2 10

1.8 Chemical Composition

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

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Hemimorphite and Pyrope Chemical Formula

While comparing Hemimorphite and Pyrope 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 Pyrope 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 Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Hemimorphite and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hemimorphite and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.