Carnelian and Pleonaste Physical Properties

Carnelian

Pleonaste

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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

2.58-2.643.80

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Absent

Not Available

1.7 Mohs Hardness

6.5-78

2 10

1.8 Chemical Composition

SiO₂

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

Carnelian and Pleonaste Chemical Formula

While comparing Carnelian and Pleonaste 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 Pleonaste chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

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Carnelian and Pleonaste Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Pleonaste Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Pleonaste Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 3.80 whereas that of Pleonaste is 3.80.