Black Opal Vs Goethite
Origin
Australia
Australia
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow
Streak
Not Available
Brown, Brownish, Yellow
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
1.97-2.22
4.27-4.29
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
Not Available
Perfect {010}
Mohs Hardness
6-6.5
5-5.5
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
FeO(OH)Arthur Thomas , Gemstones (2009)
Luster
Not Available
Adamantine
Pleochroism
AbsentWalter Schumann
VisibleArthur Thomas
Dispersion
None
Not Available
Transparency
Transparent, Translucent
Gemstones (2009)
Refractive Index
1.370-1.470
2.26-2.398
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
Not Available
0.138
Clarity
Transparent
Gemstones (2009)
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Black Opal Vs Goethite Fracture
Fracture is an important parameter when you compare Black Opal and Goethite Physical Properties. It is necessary to understand the significance of these properties, before you compare Black Opal Vs Goethite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Black Opal is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Goethite fracture is (e.g. fractured metals)., (e.g. fractured metals)., Gemstones (2009), torn surfaces, torn surfaces, Uneven and Uneven.
Black Opal Vs Goethite Luster
A primary knowledge about Black Opal vs Goethite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Goethite, on other hand, exhibits Adamantine luster.