Peridot Vs Sillimanite
Origin
China, Burma, Pakistan, USA, Southern and central Africa, Brazil
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Green
Blue, Green, Brownish, Greenish, Colorless, gray
For which Rashi?
Libra, Taurus, Leo, Virgo, Libra, Taurus, Leo, Virgo, Libra, Taurus, Leo, Virgo
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Element of Planets
Earth
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Finger
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Ring Metal
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Energy
Receptive
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Deities
Isis
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Not to wear with
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Powers
Protection, Wealth
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Planetary
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Talisman
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Tenacity
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Tough
Solubility
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Durability
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Specific Gravity
1.54-1.55
3.20-3.26
Fracture
Conchoidal
Splintery
Cleavage
Poor
{010} perfect
Mohs Hardness
6.5-7
6-7.5
Chemical Composition
(Mg,Fe)2SiO4
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Greasy
Vitreous, Subadamantine, Silky
Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
Colourless to pale brown to yellow
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.64-1.69
1.653-1.685
Optic Character
Not Available
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.036
0.020-0.022
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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Peridot Vs Sillimanite Fracture
Fracture is an important parameter when you compare Peridot and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Peridot 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 Peridot is Conchoidal. Sillimanite fracture is Splintery.
Peridot Vs Sillimanite Luster
A primary knowledge about Peridot 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. Peridot exhibits Greasy and Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.