Origin
Madagascar, Sri Lanka
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Specific Gravity
3.80
2.98-3.10
Fracture
-
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
Indistinct
[100] Perfect, [110] Good, [011] Distinct
Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
(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
1.780
1.578-1.646
Optic Character
-
Biaxial/+
Crystal System
-
Triclinic
Birefringence
-9999
0.020-0.030
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
-
Enhances mental clarity and focus
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Healing
-
Emotional healing
Qualities Associated
Grounding
Peace
Pleonaste Vs Amblygonite Fracture
Fracture is an important parameter when you compare Pleonaste and Amblygonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pleonaste 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.
Pleonaste Vs Amblygonite Luster
A primary knowledge about Pleonaste 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.