Agate Vs Sillimanite
Origin
Brazil
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Yellow, Red, White, White, Colorless, Blue, Red, Green, Yellow, pink, Black, Blue, Brown
Blue, Green, Brownish, Greenish, Colorless, gray
For which Rashi?
Gemini
Not Available
Planet
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Element of Planets
Water
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Finger
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Ring Metal
Not Available
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Energy
Projective
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Deities
Bragi
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Not to wear with
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Powers
Courage, Love, Healing, Protection
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Planetary
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Talisman
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Tenacity
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Tough
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.60-2.64
3.20-3.26
Fracture
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Splintery
Cleavage
Indiscernible
{010} perfect
Mohs Hardness
6.5-7
6-7.5
Chemical Composition
SiO2
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Subadamantine, Silky
Pleochroism
Absent
Colourless to pale brown to yellow
Dispersion
None
Not Available
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.530-1.543
1.653-1.685
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.004
0.020-0.022
Clarity
Translucent
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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Agate Vs Sillimanite Fracture
Fracture is an important parameter when you compare Agate and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Agate 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 Agate is Conchoidal, Gemstones of the world (2001) and UnevenWalter Schumann. Sillimanite fracture is Splintery.
Agate Vs Sillimanite Luster
A primary knowledge about Agate 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. Agate exhibits Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.