Brazilianite and Aragonite Physical Properties

Brazilianite

Aragonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-2.992.93-2.96

1 7.18

1.5 Fracture

Conchoidal, Gems

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

(010) Distinct to good

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

5.53.5-4

2 10

1.8 Chemical Composition

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

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Brazilianite and Aragonite Chemical Formula

While comparing Brazilianite and Aragonite 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 Aragonite 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 Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Brazilianite Vs Chalcopyrite

Brazilianite Vs Chlorapatite

Brazilianite Vs Chlorastrolite

Brazilianite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brazilianite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brazilianite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Brazilianite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.