Powellite Vs Covellite
Color
Yellow, Greenish, Blue, Brown, Green, gray
Blue, Blue, Black
Streak
Yellow
Grey, Black, gray
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.23
4.6-4.76
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
{111} Distinct
Perfect on {0001}
Mohs Hardness
3.5-4
Not Available
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Greasy, Subadamantine
Resinous
Pleochroism
In deeply colored specimens: blue greenAnthony et al
Marked
Dispersion
Not Available
Not Available
Transparency
Transparent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.974-1.984
1.45-2.62
Optic Character
Not Available
Not Available
Crystal System
Not Available
Hexagonal
Birefringence
Not Available
Not Available
Clarity
Transparent
OpaqueAnthony et al
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Powellite Vs Covellite Fracture
Fracture is an important parameter when you compare Powellite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite 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 Powellite is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al. Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Powellite Vs Covellite Luster
A primary knowledge about Powellite 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. Powellite exhibits Greasy and Subadamantine luster. Covellite, on other hand, exhibits Resinous luster.