Astrophyllite Vs Benitoite
Origin
Canada, Russia
USA, San Benito Country, USA. Very rare collectors stone. Found only in San Benito County, California
Color
Brown, Yellow, Greenish, Brownish, Red
Violet, Blue, Colorless, pink, White
Streak
Brown, White
White
Solubility
-
Insoluble: HCl
Specific Gravity
3.2-3.4
3.61-3.68
Fracture
Uneven
Conchoidal
Cleavage
Perfect on [001] imperfect on [100]
[10 1 1] poor
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Greasy, Pearly
Vitreous
Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
O = colorless; E = purple
Transparency
Translucent
Transparent
Refractive Index
1.678-1.758
1.757-1.804
Crystal System
Triclinic
Hexagonal
Birefringence
0.050
0.047
Clarity
Translucent
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Psychology
Self-Reflection
Transformation
Healing
Spiritual healing
Emotional healing
Qualities Associated
Self-Reflection
Transformation
Astrophyllite Vs Benitoite Fracture
Fracture is an important parameter when you compare Astrophyllite and Benitoite Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite Vs Benitoite 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 Astrophyllite is Uneven. Benitoite fracture is Conchoidal.
Astrophyllite Vs Benitoite Luster
A primary knowledge about Astrophyllite vs Benitoite 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. Astrophyllite exhibits Greasy and Pearly luster. Benitoite, on other hand, exhibits Vitreous luster.