Blue John Vs Hibonite
Origin
Not Available
Madagascar
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Brownish, Black, Reddish, Brown, Blue
Streak
Not Available
Reddish, Brown
For which Rashi?
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Not Available
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
Not Available
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Durability
Not Available
Not Available
Specific Gravity
3.00-3.25
3.84
Fracture
Not Available
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Not Available
{0001} good, {10 1 0} parting
Mohs Hardness
Not Available
7.5-8
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
(Ca,Ce)(Al,Ti,Mg)12O19
Luster
Not Available
Vitreous
Pleochroism
Not Available
O = brownish gray; E = gray
Dispersion
Not Available
Not Available
Transparency
Transparent
Handbook of mineralogy (2001)
Refractive Index
1.432-1.436
1.79-1.807
Optic Character
Not Available
Not Available
Crystal System
Not Available
Hexagonal
Birefringence
Not Available
Not Available
Clarity
Transparent
Handbook of mineralogy (2001)
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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Blue John Vs Hibonite Fracture
Fracture is an important parameter when you compare Blue John and Hibonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Blue John Vs Hibonite 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. Hibonite fracture is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Subconchoidal.
Blue John Vs Hibonite Luster
A primary knowledge about Blue John vs Hibonite 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, on other hand, exhibits Vitreous luster.