Phenakite Vs Covellite
Origin
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Mexico
Color
Colorless, Yellow, pink, Red
Blue, Black
Streak
White
Grey, Black, gray
Tenacity
Brittle
Flexible
Specific Gravity
2.90-2.98
4.6-4.76
Fracture
Conchoidal, ConchoidalWalter Schumann
-
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
Perfect on {0001}
Mohs Hardness
7.5-8
-9999
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Marked
Transparency
-
OpaqueAnthony et al
Refractive Index
1.650-1.695
1.45-2.62
Crystal System
Trigonal
Hexagonal
Birefringence
0.016
-9999
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueAnthony et al
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Good
Psychology
Clarity
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Spiritual Activation
Manifestation
Phenakite Vs Covellite Fracture
Fracture is an important parameter when you compare Phenakite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite Vs Covellite 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.
Phenakite Vs Covellite Luster
A primary knowledge about Phenakite vs Covellite 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. Covellite, on other hand, exhibits Resinous luster.