Franklinite Vs Melanite
Color
Brown, Red, Black, Brownish
Black
Streak
Reddish, Brown, Reddish, Brown
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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
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Solubility
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Durability
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Specific Gravity
5.05-5.22
3.70-4.10
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None
Not Available
Mohs Hardness
5.5-6
6.5-7
Chemical Composition
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Not Available
Subadamantine, Vitreous
Pleochroism
Not Available
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Transparency
Translucent
Translucent
Refractive Index
Not Available
1.855-1.895
Optic Character
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Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
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Birefringence
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Clarity
Translucent
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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Franklinite Vs Melanite Fracture
Fracture is an important parameter when you compare Franklinite and Melanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Franklinite Vs Melanite 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 Franklinite is ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Melanite fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Franklinite Vs Melanite Luster
A primary knowledge about Franklinite vs Melanite 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. Melanite, on other hand, exhibits Subadamantine and Vitreous luster.