Sillimanite Vs Musgravite
Origin
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Southern and central Africa
Color
Blue, Green, Brownish, Greenish, Colorless, gray
Grey, Green
Streak
White
Not Available
For which Rashi?
Not Available
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Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Not Available
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Deities
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Not to wear with
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Powers
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Tough
Not Available
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.20-3.26
3.62-3.68
Fracture
Splintery
Conchoidal
Cleavage
{010} perfect
Not Available
Mohs Hardness
6-7.5
8-8.5
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Fe,Zn)Al 6BeO 12Ulrich Henn and Claudio C.
Luster
Vitreous, Subadamantine, Silky
Vitreous
Pleochroism
Colourless to pale brown to yellow
Not Available
Dispersion
Not Available
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Transparency
Transparent, Translucent
Gemmological Tables (2004)
Refractive Index
1.653-1.685
1.719-1.739
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.020-0.022
0.014-0.016
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
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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 Musgravite Fracture
Fracture is an important parameter when you compare Sillimanite and Musgravite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Musgravite 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. Musgravite fracture is Conchoidal.
Sillimanite Vs Musgravite Luster
A primary knowledge about Sillimanite vs Musgravite 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. Musgravite, on other hand, exhibits Vitreous luster.