Calcite Vs Sillimanite
Origin
Mexico
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
White, Colorless, White, pink, Yellow, Brown
Blue, Green, Brownish, Greenish, Colorless, gray
For which Rashi?
Cancer
Not Available
Element of Planets
Earth, Sun
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
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Energy
Receptive
Not Available
Deities
Not Available
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Not to wear with
Not Available
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Powers
Spirituality, Healing
Not Available
Planetary
Not Available
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Talisman
Not Available
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Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.67-2.73
3.20-3.26
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Splintery
Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
{010} perfect
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Pearly
Vitreous, Subadamantine, Silky
Pleochroism
NilArthur Thomas
Colourless to pale brown to yellow
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.486-1.658
1.653-1.685
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.154-0.174
0.020-0.022
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Calcite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Calcite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Calcite 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 Calcite is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Sillimanite fracture is Splintery.
Calcite Vs Sillimanite Luster
A primary knowledge about Calcite 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. Calcite exhibits Pearly and Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.