Cassiterite Vs Oligoclase
Origin
Sri Lanka
Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Colorless, Brown, Greenish, gray
Streak
White, Brownish
White
Specific Gravity
6.86-7.03
2.62-2.67
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
From the Greek, oligos and kasein, little cleavage.
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael 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
1.538-1.550
Crystal System
tetragonal
-
Birefringence
0.096-0.098
0.010
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
Harmony
Cassiterite Vs Oligoclase Fracture
Fracture is an important parameter when you compare Cassiterite and Oligoclase Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite Vs Oligoclase 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. Oligoclase fracture is Uneven.
Cassiterite Vs Oligoclase Luster
A primary knowledge about Cassiterite vs Oligoclase 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. Oligoclase, on other hand, exhibits Vitreous luster.