Origin
Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Canada, Russia
Color
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Brown, Yellow, Greenish, Brownish, Red
Streak
White
Brown, White
Specific Gravity
2.98-3.10
3.2-3.4
Fracture
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Uneven
Cleavage
[100] Perfect, [110] Good, [011] Distinct
Perfect on [001] imperfect on [100]
Chemical Composition
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Pearly
Greasy, Pearly
Pleochroism
weak to none
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Transparency
-
Translucent
Refractive Index
1.578-1.646
1.678-1.758
Optic Character
Biaxial/+
-
Crystal System
Triclinic
Triclinic
Birefringence
0.020-0.030
0.050
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Reproductive
Supports reproductive health
-
Psychology
Peace
Self-Reflection
Healing
Emotional healing
Spiritual healing
Qualities Associated
Peace
Self-Reflection
Amblygonite Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Amblygonite and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amblygonite Vs Astrophyllite 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. Astrophyllite fracture is Uneven.
Amblygonite Vs Astrophyllite Luster
A primary knowledge about Amblygonite vs Astrophyllite 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. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.