Mimetite Vs Sillimanite
Origin
Mexico, Southern and central Africa
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Brownish, Red, Yellow, White, Brown, orange
Blue, Green, Brownish, Greenish, Colorless, gray
For which Rashi?
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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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Solubility
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Durability
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Specific Gravity
7.10
3.20-3.26
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Splintery
Cleavage
[10 1 1] Imperfect
{010} perfect
Chemical Composition
Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Resinous, Subadamantine
Vitreous, Subadamantine, Silky
Pleochroism
Weak
Colourless to pale brown to yellow
Dispersion
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Transparency
Translucent
Transparent, Translucent
Refractive Index
2.106-2.263
1.653-1.685
Optic Character
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Crystal System
Hexagonal
Orthorhombic
Birefringence
0.019
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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Mimetite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Mimetite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Mimetite 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 Mimetite is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Brittle. Sillimanite fracture is Splintery.
Mimetite Vs Sillimanite Luster
A primary knowledge about Mimetite 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. Mimetite exhibits Resinous and Subadamantine luster. Sillimanite, on other hand, exhibits Vitreous, Subadamantine and Silky luster.