Origin
Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma
Southern and central Africa
Color
Blue, Violet, Blue, Yellow, Grey
Violet, Blue, Red, Yellow, Brown, gray
Streak
Not Available
White, None
For which Rashi?
Libra, Sagittarius, Taurus, Libra, Sagittarius, Taurus, Libra, Sagittarius, Taurus
Not Available
Planet
Jupiter
Not Available
Element of Planets
Water
Not Available
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
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.6-2.7
3.90-4.05
Fracture
Not Available
Uneven, Uneven, Gems, Difficult, Fibrous
Cleavage
3,1
None – parting in 3 directions
Chemical Composition
Mg2Al4Si5O18
Al 2O 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Adamantine, Vitreous
Pleochroism
Not Available
None
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.52-1.56
1.758-1.780
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
Not Available
0.007-0.010
Clarity
Transparent to translucent
Gemmological Tables (2004) More from other references
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 Corundum Fracture
Fracture is an important parameter when you compare Iolite and Corundum Physical Properties. It is necessary to understand the significance of these properties, before you compare Iolite Vs Corundum 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. Corundum fracture is Difficult, Fibrous, Gems, Uneven and Uneven.
Iolite Vs Corundum Luster
A primary knowledge about Iolite vs Corundum 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. Corundum, on other hand, exhibits Adamantine and Vitreous luster.