Origin
Sri Lanka
Brazil, Colombia, Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Greenish, Blue, Colorless, White, Green
Streak
White, Brownish
White
Specific Gravity
6.86-7.03
3.08-3.12
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
ConchoidalWalter Schumann
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
{010} Perfect
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Adamantine, Greasy
Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Weak: colorless-(greenish) yellow
Transparency
Transparent, Translucent
-
Refractive Index
1.990-2.105
1.650-1.677
Crystal System
tetragonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
0.096-0.098
0.019-0.025
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Communication
Cassiterite Vs Euclase Fracture
Fracture is an important parameter when you compare Cassiterite and Euclase Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite Vs Euclase 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. Euclase fracture is ConchoidalWalter Schumann.
Cassiterite Vs Euclase Luster
A primary knowledge about Cassiterite vs Euclase 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. Euclase, on other hand, exhibits Vitreous luster.