Gahnospinel and Purpurite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.65-4.55
3.2-3.4
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
None, but may exhibit slight parting
[100] [001] perfect
Mohs Hardness
7.5-8
4-4.5
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Gahnospinel and Purpurite Chemical Formula
While comparing Gahnospinel 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 Gahnospinel and Purpurite chemical formula.
- Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Gahnospinel and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnospinel and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.