Agrellite and Omphacite Physical Properties

Agrellite

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

2.883.16-3.43

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

perfect [110]

{110} Good, {110} Good

1.7 Mohs Hardness

5.55-6

2 10

1.8 Chemical Composition

NaCa2Si4O10F

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

Agrellite and Omphacite Chemical Formula

While comparing Agrellite 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 Agrellite and Omphacite chemical formula.

Chemical formula of Agrellite- NaCa2Si4O10F
Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

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Agrellite and Omphacite Specific Gravity

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