Schorl Vs Pleonaste
Origin
India, Southern and central Africa, Madagascar
  
Madagascar, Sri Lanka
  
Color
Black, Brownish, Greenish
  
White, Colorless, Blue, Red, Green, Yellow, Violet
  
Streak
Brown
  
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For which Rashi?
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Planet
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Element of Planets
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How to Wear?
  
  
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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Birthstone
  
  
Planetary
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Talisman
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Tenacity
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Solubility
Not Available
  
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Durability
Not Available
  
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Specific Gravity
3.18-3.22
  
3.80
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Not Available
  
Cleavage
{1011} Indistinct
  
Not Available
  
Mohs Hardness
Not Available
  
8
  
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
  
Luster
Vitreous
  
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Pleochroism
Very strong: yellow-brown pale yellow
  
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Dispersion
Not Available
  
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Transparency
Transparent, Translucent
  
Gemmological Tables (2004)
  
Refractive Index
1.635-1.672
  
1.780
  
Optic Character
Not Available
  
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Crystal System
Not Available
  
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Birefringence
0.025
  
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Clarity
Transparent
  
Gemmological Tables (2004)
  
Physical
  
  
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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Schorl Vs Pleonaste Fracture
Fracture is an important parameter when you compare Schorl and Pleonaste Physical Properties. It is necessary to understand the significance of these properties, before you compare Schorl Vs Pleonaste 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 Schorl is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven.
Schorl Vs Pleonaste Luster
A primary knowledge about Schorl vs Pleonaste 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. Schorl exhibits Vitreous luster.