Rubellite Vs Scheelite
Origin
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Switzerland, Australia, Brazil
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Yellow, Colorless, White, Brownish, Reddish
Specific Gravity
3.01-3.06
5.9-6.3
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
Indiscernible
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
7-7.5
4.5-5
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.
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous, Adamantine
Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Definite dichoric in yellow (yellow to orange-brown)
Transparency
Transparent, Translucent
Translucent, Transparent
Refractive Index
1.614-1.666
1.918-1.936
Crystal System
-
tetragonal
Birefringence
0.014-0.040
0.016
Clarity
Transparent
Translucent
Psychology
Passion
Awareness
Healing
Emotional healing
Physical healing
Qualities Associated
Passion
Balance & Clarity
Rubellite Vs Scheelite Fracture
Fracture is an important parameter when you compare Rubellite and Scheelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Rubellite 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 Rubellite is Conchoidal. Scheelite fracture is Conchoidal and Uneven.
Rubellite Vs Scheelite Luster
A primary knowledge about Rubellite 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. Scheelite, on other hand, exhibits Vitreous and Adamantine luster.