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Powellite
Powellite

Carnelian
Carnelian



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Carnelian

Powellite and Carnelian Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.23
2.58-2.64
1.5 Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
{111} Distinct
Absent
1.7 Mohs Hardness
3.5-4
6.5-7
1.8 Chemical Composition
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
SiO2

Powellite and Carnelian Chemical Formula

While comparing Powellite and Carnelian 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 Powellite and Carnelian chemical formula.

  • Chemical formula of Powellite- CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Carnelian- SiO2

Powellite and Carnelian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Powellite and Carnelian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Carnelian Optical Properties during the identification of gemstone. Specific gravity of Powellite is 2.58-2.64 whereas that of Carnelian is 2.58-2.64.