Sheen Obsidian and Omphacite Physical Properties

Sheen Obsidian

Omphacite

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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

2.33-2.503.16-3.43

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

{110} Good, {110} Good

1.7 Mohs Hardness

5-5.55-6

2 10

1.8 Chemical Composition

Not Available

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

Sheen Obsidian and Omphacite Chemical Formula

While comparing Sheen Obsidian and Omphacite 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 Sheen Obsidian and Omphacite chemical formula.

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

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Sheen Obsidian and Omphacite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sheen Obsidian and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sheen Obsidian and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Sheen Obsidian is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.