Iddingsite and Omphacite Physical Properties

Iddingsite

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

2.5-2.83.16-3.43

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{???} Perfect

{110} Good, {110} Good

1.7 Mohs Hardness

35-6

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

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

Iddingsite and Omphacite Chemical Formula

While comparing Iddingsite 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 Iddingsite and Omphacite chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Compare Brown Gemstones

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Iddingsite and Omphacite Specific Gravity

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