Origin
Afghanistan, Italy
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Color
Blue, Colorless
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Specific Gravity
2.55-2.65
2.98-3.10
Fracture
Conchoidal
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
Perfect {10 1 0}
[100] Perfect, [110] Good, [011] Distinct
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Vitreous, Pearly
Pleochroism
-
weak to none
Transparency
Transparent
-
Refractive Index
1.523
1.578-1.646
Optic Character
-
Biaxial/+
Crystal System
Trigonal
Triclinic
Birefringence
0.006
0.020-0.030
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Peace
Afghanite Vs Amblygonite Fracture
Fracture is an important parameter when you compare Afghanite and Amblygonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Afghanite 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 Afghanite is Conchoidal. Amblygonite fracture is Sub-Conchoidal, Irregular/uneven, Uneven and Conchoidal.
Afghanite Vs Amblygonite Luster
A primary knowledge about Afghanite 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. Afghanite exhibits Vitreous luster. Amblygonite, on other hand, exhibits Vitreous and Pearly luster.