Rubellite Vs Blue John
Origin
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
-
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
White, Colorless, Blue, Red, Green, Yellow, Violet
Specific Gravity
3.01-3.06
3.00-3.25
Cleavage
Indiscernible
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.
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
-
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.614-1.666
1.432-1.436
Birefringence
0.014-0.040
-9999
Clarity
Transparent
Transparent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Psychology
Passion
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Passion
Mental Clarity
Rubellite Vs Blue John Fracture
Fracture is an important parameter when you compare Rubellite and Blue John Physical Properties. It is necessary to understand the significance of these properties, before you compare Rubellite Vs Blue John 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 Blue John Luster
A primary knowledge about Rubellite vs Blue John 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.