Cassiterite Vs Gahnite
Origin
Sri Lanka
Australia
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Blue, Green, Greenish, Black
Streak
White, Brownish
Grey, gray
Specific Gravity
6.86-7.03
4.00-4.62
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Conchoidal, Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Indistinct parting on [111]
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Adamantine, Greasy
Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
-
Transparency
Transparent, Translucent
-
Refractive Index
1.990-2.105
1.790-1.818
Crystal System
tetragonal
cubic
Birefringence
0.096-0.098
-9999
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Poor
Aids in digestion and soothes the stomach
Psychology
Focus
Protection
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Harmony
Cassiterite Vs Gahnite Fracture
Fracture is an important parameter when you compare Cassiterite and Gahnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite Vs Gahnite 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. Gahnite fracture is Conchoidal and Uneven.
Cassiterite Vs Gahnite Luster
A primary knowledge about Cassiterite vs Gahnite 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. Gahnite, on other hand, exhibits Vitreous luster.