Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
USA
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Green, Colorless, Greenish, White
Streak
White
Greenish, White
Specific Gravity
2.98-3.10
3.1-3.2
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
-
Cleavage
[100] Perfect, [110] Good, [011] Distinct
Vitreous, pearly on cleavage
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Pearly
Pleochroism
weak to none
-
Refractive Index
1.578-1.646
1.653-1.693
Optic Character
Biaxial/+
-
Crystal System
Triclinic
monoclinic
Birefringence
0.020-0.030
0.038-0.044
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
Aids in mental clarity and focus
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Digestive
-
Supports digestive health
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Emotional Healing
Amblygonite Vs Ludlamite Fracture
Fracture is an important parameter when you compare Amblygonite and Ludlamite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Ludlamite 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 Ludlamite Luster
A primary knowledge about Amblygonite vs Ludlamite 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. Ludlamite, on other hand, exhibits Vitreous and Pearly luster.