Moonstone and Goethite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
2.56-2.60
4.27-4.29
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Perfect {010}
Mohs Hardness
6-6.5
5-5.5
Chemical Composition
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
FeO(OH)Arthur Thomas , Gemstones (2009)
Moonstone and Goethite Chemical Formula
While comparing Moonstone 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 Moonstone and Goethite chemical formula.
- Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Moonstone and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Moonstone and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Goethite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 4.27-4.29 whereas that of Goethite is 4.27-4.29.