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Mexican fire opal
Mexican fire opal
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Brazilianite
Brazilianite
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Mexican fire opal
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Brazilianite

Mexican fire opal and Brazilianite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
-9999
SiO2·nH2O
 
-
-
-
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

Mexican fire opal and Brazilianite Chemical Formula

While comparing Mexican fire opal 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 Mexican fire opal and Brazilianite chemical formula.

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Mexican fire opal and Brazilianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mexican fire opal and Brazilianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mexican fire opal Vs Brazilianite during the identification of gemstone. Specific gravity of Mexican fire opal is whereas that of Brazilianite is .