Sillimanite Vs Ekanite
Origin
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Canada, Southern and central Africa
Color
Blue, Green, Brownish, Greenish, Colorless, gray
Green, Green, Yellow, Red
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
Tough
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Solubility
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Durability
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Specific Gravity
3.20-3.26
3.28-3.32
Fracture
Splintery
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
{010} perfect
{101} Distinct
Mohs Hardness
6-7.5
6-6.5
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Subadamantine, Silky
Vitreous
Pleochroism
Colourless to pale brown to yellow
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Dispersion
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Transparency
Transparent, Translucent
Transparent
Refractive Index
1.653-1.685
1.593-1.596
Optic Character
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Crystal System
Orthorhombic
Tetragonal Trapezohedral H-M Symbol (4 2 2) Space Group: I 422
Birefringence
0.020-0.022
0.001
Clarity
Transparent
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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Sillimanite Vs Ekanite Fracture
Fracture is an important parameter when you compare Sillimanite and Ekanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Ekanite 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. Ekanite fracture is Brittle, Gemstones (2009), Gemstones (2009), Uneven and UnevenArthur Thomas.
Sillimanite Vs Ekanite Luster
A primary knowledge about Sillimanite vs Ekanite 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 Silky, Subadamantine and Vitreous luster. Ekanite, on other hand, exhibits Vitreous luster.