Sillimanite Vs Sphalerite
Origin
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Mexico, USA, Spain
Color
Blue, Green, Brownish, Greenish, Colorless, gray
Green, Brown, Yellow, Red, Black
Streak
White
Brownish, White
For which Rashi?
Not Available
Not Available
Planet
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Element of Planets
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Finger
Not Available
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Ring Metal
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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
Tough
Not Available
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.20-3.26
3.95-4.10
Fracture
Splintery
UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven
Cleavage
{010} perfect
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
6-7.5
3.5-4
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Subadamantine, Silky
Adamantine
Pleochroism
Colourless to pale brown to yellow
AbsentWalter Schumann
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.653-1.685
2.368-2.371
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Isometric
Birefringence
0.020-0.022
Not Available
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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Sillimanite Vs Sphalerite Fracture
Fracture is an important parameter when you compare Sillimanite and Sphalerite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Sphalerite 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. Sphalerite fracture 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 Vs Sphalerite Luster
A primary knowledge about Sillimanite vs Sphalerite 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. Sphalerite, on other hand, exhibits Adamantine luster.