Andradite and Diaspore Physical Properties
Tenacity
Brittle
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.70-4.10
3.30-3.40
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal
Cleavage
none
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Andradite and Diaspore Chemical Formula
While comparing Andradite and Diaspore 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 Andradite and Diaspore chemical formula.
- Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Andradite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andradite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Andradite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.