Caledonite and Friedelite Physical Properties

Caledonite

Friedelite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.6-5.763.06-3.19

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

[001] perfect; [100] distinct

{010} Perfect

1.7 Mohs Hardness

2.5-34-5

2 10

1.8 Chemical Composition

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

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

Caledonite and Friedelite Chemical Formula

While comparing Caledonite and Friedelite 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 Caledonite and Friedelite chemical formula.

Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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Caledonite and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.