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