Cordierite Vs Idocrase
Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
  
Canada, USA, Italy, Russia, Switzerland, Tanzania, Kenya, Sri Lanka
  
Color
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
  
Green, Yellow, Brown, Violet, Blue
  
Streak
White
  
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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
Brittle
  
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Solubility
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Durability
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Specific Gravity
2.57-2.66
  
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Fracture
Subconchoidal, Conchoidal, Brittle
  
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Cleavage
Fair on {100}, poor on {001} and {010}
  
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Mohs Hardness
7-7.5
  
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Chemical Composition
Mg2Al4Si5O18
  
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Luster
Greasy, Vitreous
  
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Pleochroism
X = pale yellow
  
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Dispersion
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Transparency
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Refractive Index
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1.67-1.76
  
Optic Character
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Crystal System
Orthorhombic
  
tetragonal
  
Birefringence
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Clarity
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Color grading system
  
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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Cordierite Vs Idocrase Fracture
Fracture is an important parameter when you compare Cordierite and Idocrase Physical Properties. It is necessary to understand the significance of these properties, before you compare Cordierite Vs Idocrase 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 Cordierite is Brittle, Conchoidal and Subconchoidal.
Cordierite Vs Idocrase Luster
A primary knowledge about Cordierite vs Idocrase 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. Cordierite exhibits Greasy and Vitreous luster.