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