Brazilianite and Emerald Physical Properties

Brazilianite

Emerald

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.98-2.992.67-2.78

1 7.18

1.5 Fracture

Conchoidal, Gems

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

(010) Distinct to good

Imperfect on the [0001]

1.7 Mohs Hardness

5.57.5-8

2 10

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Brazilianite and Emerald Chemical Formula

While comparing Brazilianite and Emerald 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 Emerald 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 Emerald- Be₃Al₂SiO₆

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Brazilianite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brazilianite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brazilianite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Brazilianite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.