Sillimanite Vs Obsidian
Origin
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Australia, Canada, Guatemala, Italy, Kenya, Mexico, Turkey, Mexico, Guatemala, Mexico, Guatemala
Color
Blue, Green, Brownish, Greenish, Colorless, gray
Brown, Green
Streak
White
Not Available
For which Rashi?
Not Available
Sagittarius
Planet
Not Available
Not Available
Element of Planets
Not Available
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Energy
Not Available
Projective
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Itzpapalotl
Not to wear with
Not Available
Not Available
Powers
Not Available
Protection
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Tough
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.20-3.26
2.35-2.60
Fracture
Splintery
Conchoidal, ConchoidalWalter Schumann, Conchoidal
Cleavage
{010} perfect
Not Available
Mohs Hardness
6-7.5
5-5.5
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Not Available
Luster
Vitreous, Subadamantine, Silky
Vitreous
Pleochroism
Colourless to pale brown to yellow
AbsentWalter Schumann
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.653-1.685
1.450-1.550
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Amorphous
Birefringence
0.020-0.022
Not Available
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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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
Not Available
Sillimanite Vs Obsidian Fracture
Fracture is an important parameter when you compare Sillimanite and Obsidian Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Obsidian 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. Obsidian fracture is Conchoidal, ConchoidalWalter Schumann and Conchoidal.
Sillimanite Vs Obsidian Luster
A primary knowledge about Sillimanite vs Obsidian 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. Obsidian, on other hand, exhibits Vitreous luster.
