Corundum Vs Cobaltite
Origin
Southern and central Africa
Canada
Color
Violet, Blue, Red, Yellow, Brown, gray
Reddish, White, Violet, gray, Black, Reddish, White, Violet, gray, Black
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
Brittle
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Solubility
insoluble
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Durability
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Specific Gravity
3.90-4.05
6.3
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Cleavage
None – parting in 3 directions
{100} Good, {010} Good, {001} Good
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
CoAsSAnthony et al , Handbook of mineralogy (2001)
Luster
Adamantine, Vitreous
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Pleochroism
None
Very weak
Transparency
Transparent, Translucent
Gems
Refractive Index
1.758-1.780
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Optic Character
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Crystal System
Trigonal
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
Birefringence
0.007-0.010
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Clarity
Gemmological Tables (2004) More from other references
Gems
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Corundum Vs Cobaltite Fracture
Fracture is an important parameter when you compare Corundum and Cobaltite Physical Properties. It is necessary to understand the significance of these properties, before you compare Corundum Vs Cobaltite 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 Corundum is Difficult, Fibrous, Gems, Uneven and Uneven. Cobaltite fracture is Brittle, Handbook of mineralogy (2001) More from other references, Handbook of mineralogy (2001) More from other references, Metallic, UnevenAnthony et al and UnevenAnthony et al.
Corundum Vs Cobaltite Luster
A primary knowledge about Corundum vs Cobaltite 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. Corundum exhibits Adamantine and Vitreous luster.