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Lazulite
Lazulite

Andradite
Andradite



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Lazulite
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Andradite

Lazulite and Andradite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.04-3.173.70-4.10
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
{001} Indistinct, {???} Indistinct
none
1.7 Mohs Hardness
5.56.5-7
Amber
2 10
1.8 Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Lazulite and Andradite Chemical Formula

While comparing Lazulite and Andradite 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 Lazulite and Andradite chemical formula.

  • Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
  • Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Lazulite and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.