Nephrite Vs Rubellite
Origin
China, Canada
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Color
Green, Yellow, Brown, White, gray, Black
White, Colorless, Blue, Red, Green, Yellow, Violet
Specific Gravity
2.90-3.10
3.01-3.06
Fracture
Splintery, Granular
Conchoidal
Cleavage
None
Indiscernible
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
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Luster
Vitreous, Greasy
-
Pleochroism
None
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.600-1.627
1.614-1.666
Crystal System
monoclinic
-
Birefringence
0.027
0.014-0.040
Clarity
Translucent
Transparent
Neurological
Aids in mental clarity and focus
-
Respiratory
Good
Excellent
Psychology
Emotional Balance
Passion
Healing
Physical healing
Emotional healing
Qualities Associated
Healing
Passion
Nephrite Vs Rubellite Fracture
Fracture is an important parameter when you compare Nephrite and Rubellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nephrite Vs Rubellite 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. Rubellite fracture is Conchoidal.
Nephrite Vs Rubellite Luster
A primary knowledge about Nephrite vs Rubellite 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.