Carnelian and Augite Physical Properties

Carnelian

Augite

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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

3.19-3.56

1.5 Fracture

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

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Absent

{110} Perfect, {010} Indistinct

1.7 Mohs Hardness

6.5-7

5.5-6

1.8 Chemical Composition

SiO₂

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

Carnelian and Augite Chemical Formula

While comparing Carnelian and Augite 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 Augite chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

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Carnelian and Augite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Augite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Augite Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 3.19-3.56 whereas that of Augite is 3.19-3.56.