Origin
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Switzerland, Australia, Brazil
Color
Colorless, Yellow, pink, Red
Yellow, Colorless, White, Brownish, Reddish
Specific Gravity
2.90-2.98
5.9-6.3
Fracture
Conchoidal, ConchoidalWalter Schumann
Conchoidal, Uneven
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
7.5-8
4.5-5
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Adamantine
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Definite dichoric in yellow (yellow to orange-brown)
Transparency
-
Translucent, Transparent
Refractive Index
1.650-1.695
1.918-1.936
Crystal System
Trigonal
tetragonal
Birefringence
0.016
0.016
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Cardiovascular
Supports heart health
-
Psychology
Clarity
Awareness
Healing
Emotional healing
Physical healing
Qualities Associated
Spiritual Activation
Balance & Clarity
Phenakite Vs Scheelite Fracture
Fracture is an important parameter when you compare Phenakite and Scheelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite Vs Scheelite 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. Scheelite fracture is Conchoidal and Uneven.
Phenakite Vs Scheelite Luster
A primary knowledge about Phenakite vs Scheelite 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. Scheelite, on other hand, exhibits Vitreous and Adamantine luster.