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Star Ruby
Star Ruby

Brazilianite
Brazilianite



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Star Ruby
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Brazilianite

Star Ruby and Brazilianite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.95-4.10
Uneven
None
-9999
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
2.98-2.99
Conchoidal
(010) Distinct to good
5.5
NaAl 3(PO 4) 2(OH) 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Star Ruby and Brazilianite Chemical Formula

While comparing Star Ruby and Brazilianite 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 Brazilianite chemical formula.

  • Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Star Ruby and Brazilianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Ruby and Brazilianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Ruby and Brazilianite Optical Properties during the identification of gemstone. Specific gravity of Star Ruby is 2.98-2.99 whereas that of Brazilianite is 2.98-2.99.