Origin
Sri Lanka
Switzerland, Australia, Brazil
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Yellow, Colorless, White, Brownish, Reddish
Streak
White, Brownish
White
Specific Gravity
6.86-7.03
5.9-6.3
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Conchoidal, Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Adamantine, Greasy
Vitreous, Adamantine
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Definite dichoric in yellow (yellow to orange-brown)
Transparency
Transparent, Translucent
Translucent, Transparent
Refractive Index
1.990-2.105
1.918-1.936
Crystal System
tetragonal
tetragonal
Birefringence
0.096-0.098
0.016
Clarity
Transparent
Translucent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Psychology
Focus
Awareness
Healing
Emotional healing
Physical healing
Qualities Associated
Manifestation
Balance & Clarity
Cassiterite Vs Scheelite Fracture
Fracture is an important parameter when you compare Cassiterite and Scheelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite 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 Cassiterite is Subconchoidal, Uneven, Conchoidal and Irregular. Scheelite fracture is Conchoidal and Uneven.
Cassiterite Vs Scheelite Luster
A primary knowledge about Cassiterite 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. Cassiterite exhibits Adamantine and Greasy luster. Scheelite, on other hand, exhibits Vitreous and Adamantine luster.