Variscite and Goethite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
2.42-2.58
4.27-4.29
Fracture
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
[010] perfect
Perfect {010}
Chemical Composition
AlPO4 · 2(H2O)
FeO(OH)Arthur Thomas , Gemstones (2009)
Variscite and Goethite Chemical Formula
While comparing Variscite and Goethite 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 Variscite and Goethite chemical formula.
- Chemical formula of Variscite- AlPO4 · 2(H2O)
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Variscite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Variscite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Variscite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.