Nephrite Vs Iolite
Origin
China, Canada
Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma
Color
Green, Yellow, Brown, White, gray, Black
Blue, Violet, Yellow, Grey
Streak
Not Available
Not Available
For which Rashi?
Not Available
Libra, Sagittarius, Taurus
Planet
Not Available
Jupiter
Element of Planets
Not Available
Water
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
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
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.10
2.6-2.7
Fracture
Splintery, Granular
Not Available
Cleavage
Not Available
3,1
Mohs Hardness
6-6.5
7-7.5
Chemical Composition
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Mg2Al4Si5O18
Luster
Vitreous, Greasy
Vitreous
Pleochroism
None
Not Available
Dispersion
Not Available
Not Available
Transparency
Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.600-1.627
1.52-1.56
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Orthorhombic
Birefringence
0.027
Not Available
Clarity
Translucent
Transparent to translucent
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
Nephrite Vs Iolite Fracture
Fracture is an important parameter when you compare Nephrite and Iolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nephrite Vs Iolite 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 Nephrite is Splintery and Granular.
Nephrite Vs Iolite Luster
A primary knowledge about Nephrite vs Iolite 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. Nephrite exhibits Vitreous and Greasy luster. Iolite, on other hand, exhibits Vitreous luster.
