Omphacite and Pyrope Almandine Physical Properties

Omphacite

Pyrope Almandine

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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

3.16-3.433.62-4.20

1 7.18

1.5 Fracture

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

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

1.6 Cleavage

{110} Good, {110} Good

Not Available

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

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

(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

Omphacite and Pyrope Almandine Chemical Formula

While comparing Omphacite and Pyrope Almandine 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 Pyrope Almandine chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

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Omphacite and Pyrope Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Pyrope Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Pyrope Almandine Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 3.62-4.20 whereas that of Pyrope Almandine is 3.62-4.20.