Hibonite Vs Gahnospinel
Origin
Madagascar
Sri Lanka
Color
Brownish, Black, Reddish, Brown, Blue
Blue
Streak
Reddish, Brown
Not Available
For which Rashi?
Not Available
Sagittarius, Scorpio
Planet
Not Available
Pluto
Element of Planets
Not Available
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Finger
Not Available
Not Available
Ring Metal
Not Available
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Energy
Not Available
Projective
Deities
Not Available
Hephaestus
Not to wear with
Not Available
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Powers
Not Available
Money
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
Not Available
Durability
Not Available
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Specific Gravity
3.84
3.65-4.55
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{0001} good, {10 1 0} parting
None, but may exhibit slight parting
Mohs Hardness
7.5-8
7.5-8
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Pleochroism
O = brownish gray; E = gray
AbsentWalter Schumann
Dispersion
Not Available
Not Available
Transparency
Handbook of mineralogy (2001)
Gemmological Tables (2004)
Refractive Index
1.79-1.807
1.735-1.790
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Isometric
Birefringence
Not Available
Not Available
Clarity
Handbook of mineralogy (2001)
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
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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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Hibonite Vs Gahnospinel Fracture
Fracture is an important parameter when you compare Hibonite and Gahnospinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Hibonite Vs Gahnospinel 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. Gahnospinel fracture is ConchoidalArthur Thomas and Gemstones (2009).
Hibonite Vs Gahnospinel Luster
A primary knowledge about Hibonite vs Gahnospinel 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. Gahnospinel, on other hand, exhibits Vitreous luster.