Origin
Canada, Brazil, Madagascar, Mozambique, Russia, India, Pakistan, China, Sri Lanka, Origins: Canada, Namibia
Sri Lanka
Color
Green, Blue, Yellow, Colorless, pink
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Streak
White
White, Brownish
Specific Gravity
2.60-2.90
6.86-7.03
Fracture
Uneven, Conchoidal, Irregular
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
Imperfect on {0001}
{100} imperfect, {110} indistinct; partings on {111} or {011}
Chemical Composition
Be3Al2Si6O18
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Resinous
Adamantine, Greasy
Pleochroism
Weak to distinct
Pleochroic haloes have been observed. Dichroic in yellow
Transparency
Transparent, Transparent to opaque
Transparent, Translucent
Refractive Index
1.560-1.604
1.990-2.105
Crystal System
Hexagonal
tetragonal
Birefringence
0.0040-0.0070
0.096-0.098
Clarity
Transparent
Transparent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Psychology
Communication
Focus
Healing
Physical healing
Emotional healing
Qualities Associated
Courage
Manifestation
Beryl Vs Cassiterite Fracture
Fracture is an important parameter when you compare Beryl and Cassiterite Physical Properties. It is necessary to understand the significance of these properties, before you compare Beryl 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 Beryl is Uneven, Conchoidal and Irregular. Cassiterite fracture is Subconchoidal, Uneven, Conchoidal and Irregular.
Beryl Vs Cassiterite Luster
A primary knowledge about Beryl 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. Beryl exhibits Vitreous and Resinous luster. Cassiterite, on other hand, exhibits Adamantine and Greasy luster.