Sugilite Vs Sillimanite
Origin
Canada, Southern and central Africa, Italy, Australia, India
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Violet, Brownish, Yellow, Reddish, Pale pink
Blue, Green, Brownish, Greenish, Colorless, gray
For which Rashi?
Virgo
Not Available
Planet
Mercury, Jupiter
Not Available
Element of Planets
Water
Not Available
Energy
Receptive
Not Available
Finger
Not Available
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Ring Metal
Not Available
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Deities
The All
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Not to wear with
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Powers
Not Available
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Planetary
All
Not Available
Talisman
Not Available
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Tenacity
Not Available
Tough
Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
2.69-2.79
3.20-3.26
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Splintery
Cleavage
Poor on {0001}
{010} perfect
Mohs Hardness
5.5-6.5
6-7.5
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Subadamantine, Silky
Pleochroism
Weak
Colourless to pale brown to yellow
Dispersion
Not Available
Not Available
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.607-1.612
1.653-1.685
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Orthorhombic
Birefringence
0.003
0.020-0.022
Clarity
Translucent
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
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Sugilite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Sugilite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sugilite Vs Sillimanite 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 Sugilite is ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas and Gemstones (2009). Sillimanite fracture is Splintery.
Sugilite Vs Sillimanite Luster
A primary knowledge about Sugilite vs Sillimanite 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. Sugilite exhibits Vitreous luster. Sillimanite, on other hand, exhibits Vitreous, Subadamantine and Silky luster.
