Carnelian and Powellite Physical Properties

Carnelian

Powellite

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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

2.58-2.64

4.23

1.5 Fracture

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

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Absent

{111} Distinct

1.7 Mohs Hardness

6.5-7

3.5-4

1.8 Chemical Composition

SiO₂

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Carnelian and Powellite Chemical Formula

While comparing Carnelian and Powellite 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 Powellite chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Carnelian Vs Kunzite

Carnelian Vs Prasiolite

Carnelian Vs Quartz

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Carnelian and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Powellite Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 4.23 whereas that of Powellite is 4.23.