Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Southern and central Africa
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Colorless, gray, White
Specific Gravity
2.98-3.10
2.40-2.42
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
-
Cleavage
[100] Perfect, [110] Good, [011] Distinct
{010} Perfect, {001} Distinct
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous
Pleochroism
weak to none
-
Transparency
-
Transparent
Refractive Index
1.578-1.646
1.584-1.615
Optic Character
Biaxial/+
-
Crystal System
Triclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
0.020-0.030
0.028-0.030
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Enhances mental clarity and focus
-
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Psychology
Peace
Imagination
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Harmony
Amblygonite Vs Colemanite Fracture
Fracture is an important parameter when you compare Amblygonite and Colemanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Colemanite 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 Colemanite Luster
A primary knowledge about Amblygonite vs Colemanite 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. Colemanite, on other hand, exhibits Vitreous luster.