Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
India
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Yellow, Greenish, Blue, Brown, Green, gray
Specific Gravity
2.98-3.10
4.23
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Conchoidal
Cleavage
[100] Perfect, [110] Good, [011] Distinct
{111} Distinct
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Pearly
Greasy, Subadamantine
Pleochroism
weak to none
In deeply colored specimens: blue greenAnthony et al
Transparency
-
Transparent
Refractive Index
1.578-1.646
1.974-1.984
Optic Character
Biaxial/+
-
Crystal System
Triclinic
-
Birefringence
0.020-0.030
-9999
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Enhances mental clarity and focus
-
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Vitality
Amblygonite Vs Powellite Fracture
Fracture is an important parameter when you compare Amblygonite and Powellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Powellite 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 Amblygonite is Sub-Conchoidal, Irregular/uneven, Uneven and Conchoidal. Powellite fracture is Conchoidal.
Amblygonite Vs Powellite Luster
A primary knowledge about Amblygonite vs Powellite 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. Amblygonite exhibits Vitreous and Pearly luster. Powellite, on other hand, exhibits Greasy and Subadamantine luster.