Bytownite Vs Gahnite
Origin
Canada, Southern and central Africa, Australia
Australia
Color
Colorless, White, Colorless, gray, White
Blue, Green, Greenish, Black
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
Brittle
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Solubility
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Durability
Not Available
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Specific Gravity
2.72-2.75
4.00-4.62
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Conchoidal, Uneven
Cleavage
Perfect on [001], good on [010], imperfect on [110]
Indistinct parting on [111]
Mohs Hardness
6-6.5
7.5-8
Chemical Composition
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Pearly
Vitreous
Pleochroism
colorless.
Not Available
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.561-1.583
1.790-1.818
Optic Character
Not Available
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Crystal System
Triclinic
cubic
Birefringence
0.010-0.011
Not Available
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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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Bytownite Vs Gahnite Fracture
Fracture is an important parameter when you compare Bytownite and Gahnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Bytownite Vs Gahnite 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 Bytownite is Gems, Sixth Edition (2006), Uneven and Uneven. Gahnite fracture is Conchoidal and Uneven.
Bytownite Vs Gahnite Luster
A primary knowledge about Bytownite vs Gahnite 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. Bytownite exhibits Pearly and Vitreous luster. Gahnite, on other hand, exhibits Vitreous luster.