Origin
Not Available
  
Canada, Russia, Kenya, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Norway, Brazil
  
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
  
Green, Greenish, Black, Green, Greenish, Black, Green, Greenish, Black, Reddish, Brown, Black, Green, Greenish, Black, Reddish, Brown, Black, Green, Greenish, Black, Reddish, Brown, Black
  
Streak
Not Available
  
Yellow, Yellowish-grey, gray
  
For which Rashi?
Not Available
  
Pisces
  
Planet
Not Available
  
Not Available
  
Element of Planets
Not Available
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Not Available
  
Deities
Not Available
  
Not Noted
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Healing
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.00-3.25
  
3.50-3.60
  
Fracture
Not Available
  
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
  
Cleavage
Not Available
  
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
  
Mohs Hardness
Not Available
  
6
  
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
  
Luster
Not Available
  
Vitreous, Resinous
  
Pleochroism
Not Available
  
X = emerald green
  
Dispersion
Not Available
  
Not Available
  
Transparency
Transparent
  
Gemmological Tables (2004) More from other references
  
Refractive Index
1.432-1.436
  
1.720-1.778
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
monoclinic
  
Birefringence
Not Available
  
0.037-0.061
  
Clarity
Transparent
  
Gemmological Tables (2004) More from other references
  
Physical
  
  
Neurological
Not Available
  
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Cardiovascular
Not Available
  
Not Available
  
Respiratory
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Not Available
  
Reproductive
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Not Available
  
Digestive
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Psychology
Not Available
  
Not Available
  
Healing
Not Available
  
Not Available
  
Qualities Associated
Not Available
  
Not Available
  
Blue John Vs Aegirine Fracture
Fracture is an important parameter when you compare Blue John and Aegirine Physical Properties. It is necessary to understand the significance of these properties, before you compare Blue John Vs Aegirine 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. Aegirine fracture is Brittle, Brittle, Brittle, Metallic, Metallic, Metallic and Uneven.
Blue John Vs Aegirine Luster
A primary knowledge about Blue John vs Aegirine 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. Aegirine, on other hand, exhibits Resinous and Vitreous luster.