Origin
Canada, Brazil, Kenya, Tanzania, Madagascar, Burma, Afghanistan
Switzerland, Australia, Brazil
Color
Violet, White, gray, Brown, pink, Yellow
Yellow, Colorless, White, Brownish, Reddish
Specific Gravity
2.58-2.74
5.9-6.3
Fracture
ConchoidalWalter Schumann, Splintery
Conchoidal, Uneven
Cleavage
{100} Distinct, {110} Distinct
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
5.5-6
4.5-5
Chemical Composition
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous, Adamantine
Pleochroism
-
Definite dichoric in yellow (yellow to orange-brown)
Transparency
-
Translucent, Transparent
Refractive Index
1.540-1.579
1.918-1.936
Crystal System
tetragonal
tetragonal
Birefringence
0.006-0.037
0.016
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Neurological
Enhances mental clarity and focus
-
Psychology
Creativity
Awareness
Healing
Emotional healing
Physical healing
Qualities Associated
Problem Solving & Creativity
Balance & Clarity
Scapolite Vs Scheelite Fracture
Fracture is an important parameter when you compare Scapolite and Scheelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Scapolite 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 Scapolite is ConchoidalWalter Schumann and Splintery. Scheelite fracture is Conchoidal and Uneven.
Scapolite Vs Scheelite Luster
A primary knowledge about Scapolite 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.