Friedelite and Purpurite Physical Properties

Friedelite

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

3.06-3.193.2-3.4

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{010} Perfect

[100] [001] perfect

1.7 Mohs Hardness

4-54-4.5

2 10

1.8 Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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

Friedelite and Purpurite Chemical Formula

While comparing Friedelite 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 Friedelite and Purpurite chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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Friedelite and Purpurite Specific Gravity

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