Purpurite and Crocoite Physical Properties

Purpurite

Crocoite

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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

3.2-3.45.90-6.10

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

1.6 Cleavage

[100] [001] perfect

{110} Distinct, {001} Indistinct, {100} Indistinct

1.7 Mohs Hardness

4-4.52.5-3

2 10

1.8 Chemical Composition

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

PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Purpurite and Crocoite Chemical Formula

While comparing Purpurite and Crocoite 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 Purpurite and Crocoite chemical formula.

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

Compare Violet Gemstones

Purpurite Vs Sapphire

Purpurite Vs Sardonyx

Purpurite Vs Sard

Purpurite and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.