Gahnite Vs Povondraite
Origin
Australia
Not Available
Color
Blue, Green, Greenish, Black
Brownish, Black
For which Rashi?
Not Available
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Planet
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Element of Planets
Not Available
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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
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Specific Gravity
4.00-4.62
3.26
Fracture
Conchoidal, Uneven
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Cleavage
Indistinct parting on [111]
None
Mohs Hardness
7.5-8
Not Available
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
Pleochroism
Not Available
Strong: yellow-brown
Dispersion
Not Available
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Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.790-1.818
Not Available
Optic Character
Not Available
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Crystal System
cubic
Not Available
Birefringence
Not Available
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Gahnite Vs Povondraite Fracture
Fracture is an important parameter when you compare Gahnite and Povondraite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite Vs Povondraite 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 Gahnite is Conchoidal and Uneven. Povondraite fracture is ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven.
Gahnite Vs Povondraite Luster
A primary knowledge about Gahnite vs Povondraite 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. Gahnite exhibits Vitreous luster. Povondraite, on other hand, exhibits Resinous luster.