Covellite Vs Hackmanite
Origin
Mexico
Southern and central Africa
Color
Blue, Black
White, Colorless, Blue, Red, Green, Yellow, Violet, pink
Streak
Grey, Black, gray
Not Available
For which Rashi?
Not Available
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Planet
Not Available
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Element of Planets
Not Available
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Energy
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Flexible
Not Available
Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
2.27-2.33
Fracture
Gemstones (2009), UnevenArthur Thomas, Brittle, Metallic
UnevenArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {0001}
Not Available
Mohs Hardness
Not Available
5.5-6
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Marked
Not Available
Dispersion
Not Available
Not Available
Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Gemmological Tables (2004)
Refractive Index
1.45-2.62
1.483-1.487
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Not Available
Birefringence
Not Available
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Clarity
OpaqueAnthony et al
Transparent
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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Covellite Vs Hackmanite Fracture
Fracture is an important parameter when you compare Covellite and Hackmanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Hackmanite 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 Covellite is Gemstones (2009), UnevenArthur Thomas, Brittle and Metallic. Hackmanite fracture is UnevenArthur Thomas and Gemstones (2009).
Covellite Vs Hackmanite Luster
A primary knowledge about Covellite vs Hackmanite 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. Covellite exhibits Resinous luster. Hackmanite, on other hand, exhibits Vitreous luster.