Brazilianite and Omphacite Physical Properties

Brazilianite

Omphacite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-2.993.16-3.43

1 7.18

1.5 Fracture

Conchoidal, Gems

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

(010) Distinct to good

{110} Good, {110} Good

1.7 Mohs Hardness

5.55-6

2 10

1.8 Chemical Composition

NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Brazilianite and Omphacite Chemical Formula

While comparing Brazilianite and Omphacite 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 Brazilianite and Omphacite chemical formula.

Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Compare Green Gemstones

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Brazilianite Vs Chlorastrolite

Brazilianite and Omphacite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brazilianite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brazilianite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Brazilianite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.