Spinel and Legrandite Physical Properties
Tenacity
Not Available
Brittle
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
3.98-4.04
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
None, but may exhibit slight parting
Imperfect, poor one {100}
Chemical Composition
MgAl2O4
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Legrandite Chemical Formula
While comparing Spinel and Legrandite 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 Spinel and Legrandite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Legrandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.