Tantalite and Caledonite Physical Properties

Tantalite

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

5.25.6-5.76

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Good in one direction

[001] perfect; [100] distinct

1.7 Mohs Hardness

6-6.52.5-3

2 10

1.8 Chemical Composition

(Fe,Mn)Ta 2O 6Walter 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)

Tantalite and Caledonite Chemical Formula

While comparing Tantalite 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 Tantalite and Caledonite chemical formula.

Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter 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 Brown Gemstones

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Tantalite Vs Verdelite

Tantalite and Caledonite Specific Gravity

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