Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Specific Gravity
2.98-3.10
3.05-3.21
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
[100] Perfect, [110] Good, [011] Distinct
Good on {110}, poor on {100}
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Greasy
Pleochroism
weak to none
strongly trichroic
Transparency
-
Transparent, Translucent
Refractive Index
1.578-1.646
1.627-1.650
Optic Character
Biaxial/+
-
Crystal System
Triclinic
Orthorhombic
Birefringence
0.020-0.030
0.009-0.010
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Reproductive
Supports reproductive health
-
Psychology
Peace
Perception
Healing
Emotional healing
Physical healing
Qualities Associated
Peace
Self-Realization
Amblygonite Vs Andalusite Fracture
Fracture is an important parameter when you compare Amblygonite and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Andalusite 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. Andalusite fracture is Uneven, Subconchoidal and Splintery.
Amblygonite Vs Andalusite Luster
A primary knowledge about Amblygonite vs Andalusite 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. Andalusite, on other hand, exhibits Vitreous and Greasy luster.