Origin
Brazil, Madagascar, Russia, USA, Mexico, Pakistan, Sri Lanka
Sri Lanka
Color
Yellow, Blue, Green, Red, White, Colorless, pink, Brown
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Streak
White
White, Brownish
For which Rashi?
Sagittarius
-
Specific Gravity
3.49-3.57
6.86-7.03
Fracture
Subconchoidal, Uneven, Conchoidal
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
[001] Perfect
{100} imperfect, {110} indistinct; partings on {111} or {011}
Chemical Composition
Al2SiO4(F,OH)2
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Adamantine, Greasy
Pleochroism
Weak
Pleochroic haloes have been observed. Dichroic in yellow
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.606-1.644
1.990-2.105
Crystal System
Orthorhombic
tetragonal
Birefringence
0.008-0.011
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
Digestive
Supports digestive health
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Energy
Manifestation
Topaz Vs Cassiterite Fracture
Fracture is an important parameter when you compare Topaz and Cassiterite Physical Properties. It is necessary to understand the significance of these properties, before you compare Topaz 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 Topaz is Subconchoidal, Uneven and Conchoidal. Cassiterite fracture is Subconchoidal, Uneven, Conchoidal and Irregular.
Topaz Vs Cassiterite Luster
A primary knowledge about Topaz 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. Topaz exhibits Vitreous luster. Cassiterite, on other hand, exhibits Adamantine and Greasy luster.