Carnelian and Brazilianite Physical Properties

Carnelian

Brazilianite

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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

2.58-2.642.98-2.99

1 7.18

1.5 Fracture

Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Conchoidal, Gems

1.6 Cleavage

Absent

(010) Distinct to good

1.7 Mohs Hardness

6.5-75.5

2 10

1.8 Chemical Composition

SiO₂

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

Carnelian and Brazilianite Chemical Formula

While comparing Carnelian 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 Carnelian and Brazilianite chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Carnelian Vs Quartz

Carnelian Vs Prasiolite

Carnelian Vs Kunzite

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Carnelian and Brazilianite Specific Gravity

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