Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Southern and central Africa
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Green
Specific Gravity
2.98-3.10
2.51-2.63
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Conchoidal
Cleavage
[100] Perfect, [110] Good, [011] Distinct
Perfect
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Pearly
Waxy, Silky, Resinous, Greasy
Pleochroism
weak to none
-
Transparency
-
TranslucentHerve Nicolas Lazzarelli
Refractive Index
1.578-1.646
1.530-1.575
Optic Character
Biaxial/+
-
Crystal System
Triclinic
-
Birefringence
0.020-0.030
-9999
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentHerve Nicolas Lazzarelli
Neurological
Enhances mental clarity and focus
-
Reproductive
Supports reproductive health
-
Psychology
Peace
Compassion
Healing
Emotional healing
-
Qualities Associated
Peace
Compassion
Amblygonite Vs Williamsite Fracture
Fracture is an important parameter when you compare Amblygonite and Williamsite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Williamsite 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. Williamsite fracture is Conchoidal.
Amblygonite Vs Williamsite Luster
A primary knowledge about Amblygonite vs Williamsite 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. Williamsite, on other hand, exhibits Waxy, Silky, Resinous and Greasy luster.