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Star Ruby
Star Ruby

Caledonite
Caledonite



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Star Ruby
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Caledonite

Star Ruby and Caledonite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.95-4.105.6-5.76
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
1.6 Cleavage
Not Available
[001] perfect; [100] distinct
1.7 Mohs Hardness
Not Available2.5-3
Amber
2 10
1.8 Chemical Composition
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Star Ruby and Caledonite Chemical Formula

While comparing Star Ruby 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 Star Ruby and Caledonite chemical formula.

  • Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Star Ruby and Caledonite Specific Gravity

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