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
Brown, Black
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Specific Gravity
3.40-4.20
2.98-3.10
Fracture
-
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
Indistinct
[100] Perfect, [110] Good, [011] Distinct
Chemical Composition
Ca(Ce,La,Y,Ca)Al2(Fe,Al)Si3O12(OH)
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
-
Vitreous, Pearly
Pleochroism
-
weak to none
Refractive Index
1
1.578-1.646
Optic Character
-
Biaxial/+
Crystal System
-
Triclinic
Birefringence
0.013-0.036
0.020-0.030
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Good
Excellent
Reproductive
Supports reproductive health
Supports reproductive health
Psychology
Empowerment
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Inspiration
Peace
Allanite Vs Amblygonite Fracture
Fracture is an important parameter when you compare Allanite and Amblygonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Allanite 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. Amblygonite fracture is Sub-Conchoidal, Irregular/uneven, Uneven and Conchoidal.
Allanite Vs Amblygonite Luster
A primary knowledge about Allanite 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. Amblygonite, on other hand, exhibits Vitreous and Pearly luster.