Omphacite and Prase Physical Properties

Omphacite

Prase

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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

3.16-3.432.64-2.69

1 7.18

1.5 Fracture

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

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

1.6 Cleavage

{110} Good, {110} Good

Not Available

1.7 Mohs Hardness

5-67

2 10

1.8 Chemical Composition

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

SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Omphacite and Prase Chemical Formula

While comparing Omphacite and Prase 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 Prase chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

Omphacite Vs Prase Opal

Omphacite Vs Powellite

Omphacite Vs Pleonaste

Omphacite and Prase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Prase Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 2.64-2.69 whereas that of Prase is 2.64-2.69.