Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Australia
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Red
Streak
White
White, Colorless
Specific Gravity
2.98-3.10
3.1
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Uneven, Conchoidal
Cleavage
[100] Perfect, [110] Good, [011] Distinct
Perfect {010} imperfect {100}
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca2Al3(SiO4)3(OH)
Luster
Vitreous, Pearly
Vitreous
Pleochroism
weak to none
Present
Transparency
-
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.578-1.646
1.695
Optic Character
Biaxial/+
-
Crystal System
Triclinic
Orthorhombic
Birefringence
0.020-0.030
0.006-0.018
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueHerve Nicolas Lazzarelli
Neurological
Enhances mental clarity and focus
-
Reproductive
Supports reproductive health
-
Psychology
Peace
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Love
Amblygonite Vs Thulite Fracture
Fracture is an important parameter when you compare Amblygonite and Thulite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Thulite 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. Thulite fracture is Uneven and Conchoidal.
Amblygonite Vs Thulite Luster
A primary knowledge about Amblygonite vs Thulite 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. Thulite, on other hand, exhibits Vitreous luster.