Hurlbutite and Purpurite Physical Properties

Hurlbutite

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

2.903.2-3.4

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None

[100] [001] perfect

1.7 Mohs Hardness

64-4.5

2 10

1.8 Chemical Composition

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Hurlbutite and Purpurite Chemical Formula

While comparing Hurlbutite 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 Hurlbutite and Purpurite chemical formula.

Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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Hurlbutite and Purpurite Specific Gravity

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