Demantoid and Carnelian Physical Properties

Demantoid

Carnelian

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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

3.77-3.952.58-2.64

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

Absent

1.7 Mohs Hardness

6.56.5-7

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

SiO₂

Demantoid and Carnelian Chemical Formula

While comparing Demantoid 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 Demantoid and Carnelian chemical formula.

Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
Chemical formula of Carnelian- SiO₂

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Demantoid and Carnelian Specific Gravity

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