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