Diaspore Vs Sillimanite
Origin
Turkey
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Colorless, White, Yellow, White, Greenish, gray, Brown, Colorless, Yellow
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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Energy
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Finger
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Ring Metal
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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
Very brittle
Tough
Solubility
insoluble
Not Available
Durability
Not Available
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Specific Gravity
3.30-3.40
3.20-3.26
Fracture
Conchoidal, Brittle, Conchoidal
Splintery
Cleavage
{010} perfect, {110} distinct, {100} in traces
{010} perfect
Mohs Hardness
6.5-7
6-7.5
Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Pearly
Vitreous, Subadamantine, Silky
Pleochroism
Strong
Colourless to pale brown to yellow
Dispersion
Not Available
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Transparency
Transparent
Transparent, Translucent
Refractive Index
1.702-1.750
1.653-1.685
Optic Character
Not Available
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.048
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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Diaspore Vs Sillimanite Fracture
Fracture is an important parameter when you compare Diaspore and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Diaspore 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 Diaspore is Conchoidal, Brittle and Conchoidal. Sillimanite fracture is Splintery.
Diaspore Vs Sillimanite Luster
A primary knowledge about Diaspore 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. Diaspore exhibits Pearly luster. Sillimanite, on other hand, exhibits Vitreous, Subadamantine and Silky luster.
