Iddingsite and Lazurite Physical Properties

Iddingsite

Lazurite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.5-2.82.75

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{???} Perfect

Imperfect on {110}

1.7 Mohs Hardness

35.5

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Iddingsite and Lazurite Chemical Formula

While comparing Iddingsite and Lazurite 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 Lazurite chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

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Iddingsite and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 2.75 whereas that of Lazurite is 2.75.