Mottramite Vs Amblygonite
Origin
-
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, Green, Yellow
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Streak
Green, Brownish
White
Specific Gravity
5.9
2.98-3.10
Fracture
Sub-Conchoidal
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
None observed
[100] Perfect, [110] Good, [011] Distinct
Chemical Composition
PbCu(VO4)(OH)
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Greasy
Vitreous, Pearly
Pleochroism
Visible X=Y= canary yellow to greenish yellow
weak to none
Refractive Index
2.170
1.578-1.646
Optic Character
-
Biaxial/+
Crystal System
Orthorhombic
Triclinic
Birefringence
0.150
0.020-0.030
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
-
Enhances mental clarity and focus
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Psychology
Confidence
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Peace
Mottramite Vs Amblygonite Fracture
Fracture is an important parameter when you compare Mottramite and Amblygonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Mottramite 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 Mottramite is Sub-Conchoidal. Amblygonite fracture is Sub-Conchoidal, Irregular/uneven, Uneven and Conchoidal.
Mottramite Vs Amblygonite Luster
A primary knowledge about Mottramite 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. Mottramite exhibits Greasy luster. Amblygonite, on other hand, exhibits Vitreous and Pearly luster.