Origin
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Colorless, Yellow, pink, Red
Specific Gravity
3.01-3.06
2.90-2.98
Fracture
Conchoidal
Conchoidal, ConchoidalWalter Schumann
Cleavage
Indiscernible
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
7-7.5
7.5-8
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.
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Transparency
Transparent, Translucent
-
Refractive Index
1.614-1.666
1.650-1.695
Crystal System
-
Trigonal
Birefringence
0.014-0.040
0.016
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Psychology
Passion
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Passion
Spiritual Activation
Rubellite Vs Phenakite Fracture
Fracture is an important parameter when you compare Rubellite and Phenakite Physical Properties. It is necessary to understand the significance of these properties, before you compare Rubellite Vs Phenakite 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. Phenakite fracture is Conchoidal and ConchoidalWalter Schumann.
Rubellite Vs Phenakite Luster
A primary knowledge about Rubellite vs Phenakite 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. Phenakite, on other hand, exhibits Vitreous luster.