Sillimanite Vs Bort
Origin
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
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Color
Blue, Green, Brownish, Greenish, Colorless, gray
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
White
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For which Rashi?
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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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
Tough
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Solubility
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Durability
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Specific Gravity
3.20-3.26
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Fracture
Splintery
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Cleavage
{010} perfect
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Mohs Hardness
6-7.5
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Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
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Luster
Vitreous, Subadamantine, Silky
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Pleochroism
Colourless to pale brown to yellow
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Dispersion
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Transparency
Transparent, Translucent
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Refractive Index
1.653-1.685
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Optic Character
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Crystal System
Orthorhombic
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Birefringence
0.020-0.022
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Clarity
Transparent
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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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Sillimanite Vs Bort Fracture
Fracture is an important parameter when you compare Sillimanite and Bort Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Bort 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 Sillimanite is Splintery.
Sillimanite Vs Bort Luster
A primary knowledge about Sillimanite vs Bort 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. Sillimanite exhibits Vitreous, Subadamantine and Silky luster.