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