Lazulite and Purpurite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.04-3.17
3.2-3.4
Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
{001} Indistinct, {???} Indistinct
[100] [001] perfect
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Lazulite and Purpurite Chemical Formula
While comparing Lazulite and Purpurite 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 Purpurite 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 Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Lazulite and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazulite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.