Origin
Canada, Brazil, Kenya, Tanzania, Madagascar, Burma, Afghanistan
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Violet, White, gray, Brown, pink, 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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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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Tenacity
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Tough
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.58-2.74
3.20-3.26
Fracture
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery
Splintery
Cleavage
{100} Distinct, {110} Distinct
{010} perfect
Mohs Hardness
5.5-6
6-7.5
Chemical Composition
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Not Available
Vitreous, Subadamantine, Silky
Pleochroism
Not Available
Colourless to pale brown to yellow
Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
Refractive Index
1.540-1.579
1.653-1.685
Optic Character
Not Available
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Crystal System
tetragonal
Orthorhombic
Birefringence
0.006-0.037
0.020-0.022
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Scapolite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Scapolite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Scapolite 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 Scapolite is ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references and Splintery. Sillimanite fracture is Splintery.
Scapolite Vs Sillimanite Luster
A primary knowledge about Scapolite 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. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.