Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Mexico
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Blue, Black
Streak
White
Grey, Black, gray
Specific Gravity
2.98-3.10
4.6-4.76
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
-
Cleavage
[100] Perfect, [110] Good, [011] Distinct
Perfect on {0001}
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Pearly
Resinous
Pleochroism
weak to none
Marked
Transparency
-
OpaqueAnthony et al
Refractive Index
1.578-1.646
1.45-2.62
Optic Character
Biaxial/+
-
Crystal System
Triclinic
Hexagonal
Birefringence
0.020-0.030
-9999
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueAnthony et al
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Psychology
Peace
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Manifestation
Amblygonite Vs Covellite Fracture
Fracture is an important parameter when you compare Amblygonite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Covellite 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.
Amblygonite Vs Covellite Luster
A primary knowledge about Amblygonite vs Covellite 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. Covellite, on other hand, exhibits Resinous luster.