Phenakite Vs Astrophyllite
Origin
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Canada, Russia
Color
Colorless, Yellow, pink, Red
Brown, Yellow, Greenish, Brownish, Red
Streak
White
Brown, White
Specific Gravity
2.90-2.98
3.2-3.4
Fracture
Conchoidal, ConchoidalWalter Schumann
Uneven
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
Perfect on [001] imperfect on [100]
Chemical Composition
Be 2SiO 4Michael 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
Greasy, Pearly
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Transparency
-
Translucent
Refractive Index
1.650-1.695
1.678-1.758
Crystal System
Trigonal
Triclinic
Birefringence
0.016
0.050
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Excellent
Psychology
Clarity
Self-Reflection
Healing
Emotional healing
Spiritual healing
Qualities Associated
Spiritual Activation
Self-Reflection
Phenakite Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Phenakite and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite 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 Phenakite is Conchoidal and ConchoidalWalter Schumann. Astrophyllite fracture is Uneven.
Phenakite Vs Astrophyllite Luster
A primary knowledge about Phenakite 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. Phenakite exhibits Vitreous luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.