Sphalerite Vs Sillimanite
Origin
Mexico, USA, Spain
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Green, Brown, Yellow, Red, Black
Blue, Green, Brownish, Greenish, Colorless, gray
Streak
Brownish, White
White
For which Rashi?
Not Available
Not Available
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
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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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Tenacity
Not Available
Tough
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.95-4.10
3.20-3.26
Fracture
UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven
Splintery
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
{010} perfect
Mohs Hardness
3.5-4
6-7.5
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Adamantine
Vitreous, Subadamantine, Silky
Pleochroism
AbsentWalter Schumann
Colourless to pale brown to yellow
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
2.368-2.371
1.653-1.685
Optic Character
Not Available
Not Available
Crystal System
Isometric
Orthorhombic
Birefringence
Not Available
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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Sphalerite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Sphalerite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sphalerite 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 Sphalerite is Gemstones of the world (2001) More from other references, Gemstones of the world (2001) More from other references, Uneven, UnevenWalter Schumann and UnevenWalter Schumann. Sillimanite fracture is Splintery.
Sphalerite Vs Sillimanite Luster
A primary knowledge about Sphalerite 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. Sphalerite exhibits Adamantine luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.