Purpurite and Caledonite Physical Properties

Purpurite

Caledonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.2-3.45.6-5.76

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

[100] [001] perfect

[001] perfect; [100] distinct

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

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Purpurite and Caledonite Chemical Formula

While comparing Purpurite and Caledonite 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 Caledonite chemical formula.

Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Compare Violet Gemstones

Purpurite Vs Sard

Purpurite Vs Sardonyx

Purpurite Vs Sapphire

Purpurite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.