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