Rubellite Vs Vivianite
Origin
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Southern and central Africa
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Blue, Green, Colorless
Specific Gravity
3.01-3.06
2.64-2.70
Cleavage
Indiscernible
{010} Perfect
Mohs Hardness
7-7.5
-9999
Chemical Composition
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.
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Luster
-
Vitreous, Pearly
Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.614-1.666
1.560-1.640
Birefringence
0.014-0.040
0.054-0.075
Clarity
Transparent
Transparent
Neurological
-
Enhances mental clarity and focus
Respiratory
Excellent
Good
Healing
Emotional healing
Emotional healing
Qualities Associated
Passion
Transformation
Rubellite Vs Vivianite Fracture
Fracture is an important parameter when you compare Rubellite and Vivianite Physical Properties. It is necessary to understand the significance of these properties, before you compare Rubellite Vs Vivianite 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 Rubellite is Conchoidal.
Rubellite Vs Vivianite Luster
A primary knowledge about Rubellite vs Vivianite 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. Vivianite, on other hand, exhibits Vitreous and Pearly luster.