Boracite and Caledonite Physical Properties

Boracite

Caledonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.95-2.965.6-5.76

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

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

1.6 Cleavage

None

[001] perfect; [100] distinct

1.7 Mohs Hardness

7-7.52.5-3

2 10

1.8 Chemical Composition

Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Boracite and Caledonite Chemical Formula

While comparing Boracite 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 Boracite and Caledonite chemical formula.

Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

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Boracite and Caledonite Specific Gravity

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