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Lazurite and Milarite Physical Properties


Milarite and Lazurite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.75   
2.52-2.60   

Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic   

Cleavage
Imperfect on {110}   
{0001} Imperfect, {1120} Imperfect   

Mohs Hardness
5.5   
5.5-6   

Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.   
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Lazurite and Milarite Chemical Formula

While comparing Lazurite and Milarite 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 Milarite chemical formula.

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Lazurite and Milarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Milarite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 2.52-2.60 whereas that of Milarite is 2.52-2.60.

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