Riebeckite Vs Covellite
Origin
Not Available
Mexico
Color
Black, Blue, Yellow, Green
Blue, Blue, Black
Streak
Grey, Greenish, Brown
Grey, Black, gray
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
Brittle
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.44
4.6-4.76
Fracture
Uneven, Splintery, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Perfect on {0001}
Mohs Hardness
5.0-6.0
Not Available
Chemical Composition
Not Available
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Silky
Resinous
Pleochroism
X = blue
Marked
Dispersion
Not Available
Not Available
Transparency
Not Available
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.680-1.698
1.45-2.62
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Hexagonal
Birefringence
0.005-0.008
Not Available
Clarity
Not Available
OpaqueAnthony et al
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Riebeckite Vs Covellite Fracture
Fracture is an important parameter when you compare Riebeckite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Riebeckite Vs Covellite 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 Riebeckite is Brittle, Splintery and Uneven. Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Riebeckite Vs Covellite Luster
A primary knowledge about Riebeckite vs Covellite 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. Riebeckite exhibits Silky and Vitreous luster. Covellite, on other hand, exhibits Resinous luster.