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