Cassiterite Vs Omphacite
Origin
Sri Lanka
Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Green
Streak
White, Brownish
Greenish, White
Specific Gravity
6.86-7.03
3.16-3.43
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Uneven, Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
{110} Good, {110} Good
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Luster
Adamantine, Greasy
Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Weak: colorless -- very pale green -- very pale green
Transparency
Transparent, Translucent
TranslucentAnthony et al
Refractive Index
1.990-2.105
1.662-1.723
Crystal System
tetragonal
-
Birefringence
0.096-0.098
-9999
Clarity
Transparent
TranslucentAnthony et al
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Psychology
Focus
Empowerment
Healing
Emotional healing
Physical healing
Qualities Associated
Manifestation
Transformation
Cassiterite Vs Omphacite Fracture
Fracture is an important parameter when you compare Cassiterite and Omphacite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite Vs Omphacite 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. Omphacite fracture is Uneven and Conchoidal.
Cassiterite Vs Omphacite Luster
A primary knowledge about Cassiterite vs Omphacite 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. Omphacite, on other hand, exhibits Vitreous luster.