Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Color
Blue, Violet, Colorless, Red, Green, Brown
White, Colorless, Blue, Red, Green, Yellow, Violet
For which Rashi?
Sagittarius, Scorpio
-
Specific Gravity
3.64-3.66
3.01-3.06
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
None, but may exhibit slight parting
Indiscernible
Chemical Composition
MgAl2O4
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.
Pleochroism
Absent
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.73
1.614-1.666
Crystal System
Isometric
-
Birefringence
-9999
0.014-0.040
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Respiratory
Good
Excellent
Psychology
Revitalization
Passion
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Passion
Spinel Vs Rubellite Fracture
Fracture is an important parameter when you compare Spinel and Rubellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spinel 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 Spinel is Conchoidal and Uneven. Rubellite fracture is Conchoidal.
Spinel Vs Rubellite Luster
A primary knowledge about Spinel 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. Spinel exhibits Vitreous luster.