Rosasite Vs Sillimanite
Origin
Italy
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Blue, Green
Blue, Green, Brownish, Greenish, Colorless, gray
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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Solubility
Effervesces in cold
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Durability
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Specific Gravity
4-4.2
3.20-3.26
Fracture
Splintery
Splintery
Cleavage
Perfect on {100} and {010}
{010} perfect
Chemical Composition
Not Available
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Silky, Vitreous
Vitreous, Subadamantine, Silky
Pleochroism
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
Colourless to pale brown to yellow
Dispersion
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Transparency
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Transparent, Translucent
Refractive Index
1.672-1.688
1.653-1.685
Optic Character
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Crystal System
monoclinic
Orthorhombic
Birefringence
0.139-0.143
0.020-0.022
Clarity
Not Available
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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Rosasite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Rosasite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Rosasite 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 Rosasite is Splintery. Sillimanite fracture is Splintery.
Rosasite Vs Sillimanite Luster
A primary knowledge about Rosasite 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. Rosasite exhibits Silky and Vitreous luster. Sillimanite, on other hand, exhibits Vitreous, Subadamantine and Silky luster.
