Caledonite and Prase Physical Properties

Caledonite

Prase

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.6 Solubility

Not Available

1.9 Durability

Not Available

1.12 Specific Gravity

5.6-5.762.64-2.69

1 7.18

2.8 Fracture

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

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

2.9 Cleavage

[001] perfect; [100] distinct

Not Available

2.10 Mohs Hardness

2.5-37

2 10

3.4 Chemical Composition

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

SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Caledonite and Prase Chemical Formula

While comparing Caledonite and Prase 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 Prase 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 Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Caledonite and Prase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Prase Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 2.64-2.69 whereas that of Prase is 2.64-2.69.