Origin
USA
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Color
Blue, Green
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Streak
Blue, Greenish, White
White
Specific Gravity
5.6-5.76
2.98-3.10
Fracture
Uneven
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
[001] perfect; [100] distinct
[100] Perfect, [110] Good, [011] Distinct
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Weak
weak to none
Transparency
Transparent
-
Refractive Index
1.818-1.909
1.578-1.646
Optic Character
-
Biaxial/+
Crystal System
Orthorhombic
Triclinic
Birefringence
0.091
0.020-0.030
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
-
Enhances mental clarity and focus
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Psychology
Creativity
Peace
Healing
-
Emotional healing
Qualities Associated
-
Peace
Caledonite Vs Amblygonite Fracture
Fracture is an important parameter when you compare Caledonite and Amblygonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Caledonite 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 Caledonite is Uneven. Amblygonite fracture is Sub-Conchoidal, Irregular/uneven, Uneven and Conchoidal.
Caledonite Vs Amblygonite Luster
A primary knowledge about Caledonite 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. Caledonite exhibits Vitreous luster. Amblygonite, on other hand, exhibits Vitreous and Pearly luster.