Star Sapphire Vs Cordierite
Origin
Southern and central Africa
  
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
  
Color
Yellow, Green, Blue, Violet
  
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
  
Streak
Not Available
  
White
  
For which Rashi?
Not Available
  
Not Available
  
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 Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Not Available
  
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
3.90-4.05
  
2.57-2.66
  
Fracture
Not Available
  
Subconchoidal, Conchoidal, Brittle
  
Cleavage
Not Available
  
Fair on {100}, poor on {001} and {010}
  
Mohs Hardness
Not Available
  
7-7.5
  
Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
  
Mg2Al4Si5O18
  
Luster
Not Available
  
Greasy, Vitreous
  
Pleochroism
Not Available
  
X = pale yellow
  
Dispersion
Not Available
  
Not Available
  
Transparency
Transparent, Translucent
  
Not Available
  
Refractive Index
1.758-1.780
  
Not Available
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
Orthorhombic
  
Birefringence
0.007-0.010
  
Not Available
  
Clarity
Transparent
  
Not Available
  
Physical
  
  
Neurological
Not Available
  
Not Available
  
Cardiovascular
Not Available
  
Not Available
  
Respiratory
Not Available
  
Not Available
  
Reproductive
Not Available
  
Not Available
  
Digestive
Not Available
  
Not Available
  
Psychology
Not Available
  
Not Available
  
Healing
Not Available
  
Not Available
  
Qualities Associated
Not Available
  
Not Available
  
Star Sapphire Vs Cordierite Fracture
Fracture is an important parameter when you compare Star Sapphire and Cordierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Star Sapphire Vs Cordierite 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. Cordierite fracture is Brittle, Conchoidal and Subconchoidal.
Star Sapphire Vs Cordierite Luster
A primary knowledge about Star Sapphire vs Cordierite 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, on other hand, exhibits Greasy and Vitreous luster.