Origin
Austria, Brazil, Canada, India, Madagascar, Russia, Sri Lanka, USA
Canada, Southern and central Africa, Australia
Color
Red, Brown, Brownish, Red, Red, Black, Brown, Brownish, Red, Red, Black, Brown, Brownish, Red, Red, Black
Colorless, White, Colorless, gray, White
For which Rashi?
Not Available
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Planet
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Element of Planets
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Finger
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Ring Metal
Not Available
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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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Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.95-4.30
2.72-2.75
Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
none
Perfect on [001], good on [010], imperfect on [110]
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Greasy, Vitreous
Vitreous, Pearly
Pleochroism
None
colorless.
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.770-1.820
1.561-1.583
Optic Character
Not Available
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Crystal System
cubic
Triclinic
Birefringence
Not Available
0.010-0.011
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Almandine Vs Bytownite Fracture
Fracture is an important parameter when you compare Almandine and Bytownite Physical Properties. It is necessary to understand the significance of these properties, before you compare Almandine Vs Bytownite 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 Almandine is Brittle, Brittle, Brittle, Conchoidal, Conchoidal, Conchoidal, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009). Bytownite fracture is Gems, Sixth Edition (2006), Uneven and Uneven.
Almandine Vs Bytownite Luster
A primary knowledge about Almandine vs Bytownite 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. Almandine exhibits Greasy and Vitreous luster. Bytownite, on other hand, exhibits Pearly and Vitreous luster.