Dioptase Vs Sillimanite
Origin
Dioptase from Altyn Tübe, Kazakhstan, the type locality
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Green, Blue, Green
Blue, Green, Brownish, Greenish, Colorless, gray
For which Rashi?
Not Available
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Planet
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Element of Planets
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Finger
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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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Solubility
Soluble
Not Available
Durability
Not Available
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Specific Gravity
3.25-3.35
3.20-3.26
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Splintery
Cleavage
Perfect in three directions
{010} perfect
Chemical Composition
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Subadamantine, Silky
Pleochroism
Weak; dark emerald green
Colourless to pale brown to yellow
Transparency
TranslucentHerve Nicolas Lazzarelli
Transparent, Translucent
Refractive Index
1.644-1.720
1.653-1.685
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.051-0.053
0.020-0.022
Clarity
TranslucentHerve Nicolas Lazzarelli
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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Dioptase Vs Sillimanite Fracture
Fracture is an important parameter when you compare Dioptase and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dioptase 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 Dioptase is Brittle, Conchoidal, Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001) More from other references. Sillimanite fracture is Splintery.
Dioptase Vs Sillimanite Luster
A primary knowledge about Dioptase 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. Dioptase exhibits Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.