Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Sri Lanka, India, Brazil
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Green, Brown, Colorless, gray, Yellow
Streak
White
Brownish, White
Specific Gravity
2.98-3.10
3.55-3.73
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Conchoidal, Uneven
Cleavage
[100] Perfect, [110] Good, [011] Distinct
none
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous, Pearly
Greasy, Vitreous
Pleochroism
weak to none
None
Refractive Index
1.578-1.646
1.730-1.760
Optic Character
Biaxial/+
-
Crystal System
Triclinic
cubic
Birefringence
0.020-0.030
0.020
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
-
Reproductive
Supports reproductive health
Helps in digestion and alleviates indigestion
Psychology
Peace
Abundance
Healing
Emotional healing
Physical healing
Qualities Associated
Peace
Abundance
Amblygonite Vs Grossular Fracture
Fracture is an important parameter when you compare Amblygonite and Grossular Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Grossular 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. Grossular fracture is Conchoidal and Uneven.
Amblygonite Vs Grossular Luster
A primary knowledge about Amblygonite vs Grossular 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. Grossular, on other hand, exhibits Greasy and Vitreous luster.