Origin
Southern and central Africa
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Color
Green
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Streak
Greenish, White
White
Specific Gravity
3.16-3.43
2.98-3.10
Fracture
Uneven, Conchoidal
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
{110} Good, {110} Good
[100] Perfect, [110] Good, [011] Distinct
Chemical Composition
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Weak: colorless -- very pale green -- very pale green
weak to none
Transparency
TranslucentAnthony et al
-
Refractive Index
1.662-1.723
1.578-1.646
Optic Character
-
Biaxial/+
Crystal System
-
Triclinic
Birefringence
-9999
0.020-0.030
Clarity
TranslucentAnthony et al
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Psychology
Empowerment
Peace
Healing
Physical healing
Emotional healing
Qualities Associated
Transformation
Peace
Omphacite Vs Amblygonite Fracture
Fracture is an important parameter when you compare Omphacite and Amblygonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Omphacite Vs Amblygonite 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. Amblygonite fracture is Sub-Conchoidal, Irregular/uneven, Uneven and Conchoidal.
Omphacite Vs Amblygonite Luster
A primary knowledge about Omphacite vs Amblygonite 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. Amblygonite, on other hand, exhibits Vitreous and Pearly luster.