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Aragonite
Aragonite

Caledonite
Caledonite



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Aragonite
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Caledonite

Aragonite and Caledonite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Dilute acid
-

Durability

-
-

Specific Gravity

2.93-2.965.6-5.76
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
Uneven

Cleavage

Distinct on {010}, imperfect {110} and {011}
[001] perfect; [100] distinct

Mohs Hardness

3.5-42.5-3
2 10
👆🏻

Chemical Composition

CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Aragonite and Caledonite Chemical Formula

While comparing Aragonite 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 Aragonite and Caledonite chemical formula.

  • Chemical formula of Aragonite- CaCO 3Michael O’Donoghue , 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)

Aragonite and Caledonite Specific Gravity

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