Goethite and Labradorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
HCl soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.27-4.29
2.69-2.72
Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
Perfect {010}
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Mohs Hardness
5-5.5
6-6.5
Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
(Na,Ca)1-2Si3-2O8
Goethite and Labradorite Chemical Formula
While comparing Goethite and Labradorite 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 Goethite and Labradorite chemical formula.
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
Goethite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Goethite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.