Peridot and Carnelian Physical Properties

Peridot

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

1.54-1.552.58-2.64

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

Absent

1.7 Mohs Hardness

6.5-76.5-7

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

SiO₂

Peridot and Carnelian Chemical Formula

While comparing Peridot 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 Peridot and Carnelian chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Carnelian- SiO₂

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Peridot and Carnelian Specific Gravity

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