Grossular Garnet and Purpurite Physical Properties

Grossular Garnet

Purpurite

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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

3.63.2-3.4

1 7.18

1.5 Fracture

Not Available

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None

[100] [001] perfect

1.7 Mohs Hardness

6.5-7.54-4.5

2 10

1.8 Chemical Composition

Ca₃Al₂Si₃O₁₂

MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

Grossular Garnet and Purpurite Chemical Formula

While comparing Grossular Garnet and Purpurite 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 Grossular Garnet and Purpurite chemical formula.

Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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Grossular Garnet and Purpurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grossular Garnet and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grossular Garnet and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Grossular Garnet is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.