Lazurite and Witherite Physical Properties

Lazurite

Witherite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.754.27-4.35

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Imperfect on {110}

{010} Distinct

1.7 Mohs Hardness

5.53-3.5

2 10

1.8 Chemical Composition

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

BaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lazurite and Witherite Chemical Formula

While comparing Lazurite and Witherite 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 Lazurite and Witherite chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Witherite- BaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Lazurite and Witherite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Witherite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Witherite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 4.27-4.35 whereas that of Witherite is 4.27-4.35.