Omphacite and Friedelite Physical Properties

Omphacite

Friedelite

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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

3.16-3.433.06-3.19

1 7.18

1.5 Fracture

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

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

1.6 Cleavage

{110} Good, {110} Good

{010} Perfect

1.7 Mohs Hardness

5-64-5

2 10

1.8 Chemical Composition

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

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Omphacite and Friedelite Chemical Formula

While comparing Omphacite and Friedelite 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 Friedelite chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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Omphacite and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.