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Caledonite
Caledonite

Obsidian
Obsidian



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Caledonite
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Obsidian

Caledonite and Obsidian Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.6-5.762.35-2.60
Amber
1 7.18
1.5 Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Conchoidal, ConchoidalWalter Schumann, Conchoidal
1.6 Cleavage
[001] perfect; [100] distinct
Not Available
1.7 Mohs Hardness
2.5-35-5.5
Amber
2 10
1.8 Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Not Available

Caledonite and Obsidian Chemical Formula

While comparing Caledonite and Obsidian 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 Obsidian chemical formula.

  • Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
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Caledonite and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.