Omphacite and Chalcedony Physical Properties

Omphacite

Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.432.55-2.70

1 7.18

1.5 Fracture

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

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

1.6 Cleavage

{110} Good, {110} Good

Absent

1.7 Mohs Hardness

5-66.5-7

2 10

1.8 Chemical Composition

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

SiO₂

Omphacite and Chalcedony Chemical Formula

While comparing Omphacite and Chalcedony 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 Omphacite and Chalcedony chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Chalcedony- SiO₂

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Omphacite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.