Origin
Afghanistan, 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
Blue, Greenish, Violet
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Specific Gravity
2.75
2.98-3.10
Fracture
Uneven, Conchoidal
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
Imperfect on {110}
[100] Perfect, [110] Good, [011] Distinct
Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
(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
Refractive Index
1.500
1.578-1.646
Optic Character
-
Biaxial/+
Crystal System
Isometric
Triclinic
Birefringence
-9999
0.020-0.030
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Psychology
Communication
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Clarity
Peace
Lazurite Vs Amblygonite Fracture
Fracture is an important parameter when you compare Lazurite and Amblygonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lazurite 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 Lazurite is Uneven and Conchoidal. Amblygonite fracture is Sub-Conchoidal, Irregular/uneven, Uneven and Conchoidal.
Lazurite Vs Amblygonite Luster
A primary knowledge about Lazurite 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. Lazurite exhibits Vitreous luster. Amblygonite, on other hand, exhibits Vitreous and Pearly luster.