Colemanite and Lazurite Physical Properties

Colemanite

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

2.40-2.422.75

1 7.18

1.5 Fracture

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

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

1.6 Cleavage

{010} Perfect, {001} Distinct

Imperfect on {110}

1.7 Mohs Hardness

4.55.5

2 10

1.8 Chemical Composition

Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Colemanite and Lazurite Chemical Formula

While comparing Colemanite 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 Colemanite and Lazurite chemical formula.

Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Compare Colorless Gems

Colemanite Vs Diaspore

Colemanite Vs Datolite

Colemanite Vs Cubic Zirconia

Colemanite and Lazurite Specific Gravity

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