Hibonite Vs Powellite
Color
Brownish, Black, Reddish, Brown, Blue
Yellow, Greenish, Blue, Brown, Green, gray
Streak
Reddish, Brown
Yellow
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
3.84
4.23
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
{0001} good, {10 1 0} parting
{111} Distinct
Mohs Hardness
7.5-8
3.5-4
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Greasy, Subadamantine
Pleochroism
O = brownish gray; E = gray
In deeply colored specimens: blue greenAnthony et al
Dispersion
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Transparency
Handbook of mineralogy (2001)
Transparent
Refractive Index
1.79-1.807
1.974-1.984
Optic Character
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Crystal System
Hexagonal
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Birefringence
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Clarity
Handbook of mineralogy (2001)
Transparent
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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Hibonite Vs Powellite Fracture
Fracture is an important parameter when you compare Hibonite and Powellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Hibonite Vs Powellite 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 Hibonite is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Subconchoidal. Powellite fracture is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al.
Hibonite Vs Powellite Luster
A primary knowledge about Hibonite vs Powellite 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. Hibonite exhibits Vitreous luster. Powellite, on other hand, exhibits Greasy and Subadamantine luster.