Iolite Vs Chlorastrolite
Origin
Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma
  
USA
  
Color
Blue, Violet, Blue, Yellow, Grey
  
Green
  
Streak
Not Available
  
Not Available
  
For which Rashi?
Libra, Sagittarius, Taurus, Libra, Sagittarius, Taurus, Libra, Sagittarius, Taurus
  
Not Available
  
Planet
Jupiter
  
Not Available
  
Element of Planets
Water
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Receptive
  
Not Available
  
Deities
Goddess
  
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
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.6-2.7
  
3.1-3.5
  
Fracture
Not Available
  
Granular
  
Cleavage
3,1
  
Not Available
  
Mohs Hardness
7-7.5
  
5-6
  
Chemical Composition
Mg2Al4Si5O18
  
Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
  
Luster
Vitreous
  
Chatoyant
  
Pleochroism
Not Available
  
NilArthur Thomas
  
Dispersion
Not Available
  
Not Available
  
Transparency
Transparent, Translucent, Transparent to translucent
  
Gems
  
Refractive Index
1.52-1.56
  
1.7
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Orthorhombic
  
Not Available
  
Birefringence
Not Available
  
0.010
  
Clarity
Transparent to translucent
  
Gems
  
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
  
Iolite Vs Chlorastrolite Fracture
Fracture is an important parameter when you compare Iolite and Chlorastrolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Iolite Vs Chlorastrolite 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. Chlorastrolite fracture is Granular.
Iolite Vs Chlorastrolite Luster
A primary knowledge about Iolite vs Chlorastrolite 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. Iolite exhibits Vitreous luster. Chlorastrolite, on other hand, exhibits Chatoyant luster.