Origin
Southern and central Africa
USA
Color
Red, Brown, Red, Red, Black
Brown, Red, Black, Brownish
Streak
Brownish, Red, Brownish, Red
Reddish, Brown, Reddish, Brown
For which Rashi?
Not Available
Not Available
Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Not Available
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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
Not Available
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Durability
Not Available
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Specific Gravity
5.85-6.15
5.05-5.22
Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Cleavage
Fair in four directions forming octahedrons
None
Mohs Hardness
3.5-4
5.5-6
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Luster
Adamantine
Not Available
Pleochroism
visible
Not Available
Dispersion
Not Available
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Transparency
TranslucentWalter Schumann
Translucent
Refractive Index
2.849
Not Available
Optic Character
Not Available
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Crystal System
cubic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Birefringence
Not Available
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Clarity
TranslucentWalter Schumann
Translucent
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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Cuprite Vs Franklinite Fracture
Fracture is an important parameter when you compare Cuprite and Franklinite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cuprite Vs Franklinite 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 Cuprite is Brittle, Conchoidal, Conchoidal, Gemstones (2009), Metallic and UnevenArthur Thomas. Franklinite fracture is ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven.
Cuprite Vs Franklinite Luster
A primary knowledge about Cuprite vs Franklinite 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. Cuprite exhibits Adamantine luster.