Gaylussite and Andalusite Physical Properties
Tenacity
Not Available
Not Available
Solubility
decomposes in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.93-1.99
3.05-3.21
Fracture
Conchoidal, Conchoidal, Brittle
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Cleavage
perfect [110]
Good on {110}, poor on {100}
Chemical Composition
Na2Ca(CO3)2•5(H2O)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Gaylussite and Andalusite Chemical Formula
While comparing Gaylussite and Andalusite 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 Gaylussite and Andalusite chemical formula.
- Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Gaylussite and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gaylussite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gaylussite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Gaylussite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.