Covellite Vs Opal
Color
Blue, Blue, Black
Yellow, White, Red, Brown, Blue
Streak
Grey, Black, gray
White
For which Rashi?
Not Available
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
Planet
Not Available
Mercury
Element of Planets
Not Available
Earth, Air, Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Projective, Receptive
Deities
Not Available
Cupid
Not to wear with
Not Available
Not Available
Powers
Not Available
Astral Projection, Psychicism
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Flexible
BrittleWalter Schumann
Solubility
Not Available
hot salt water
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
1.98-2.25
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Perfect on {0001}
None
Mohs Hardness
Not Available
5-6.5
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
SiO2 · nH2O
Luster
Resinous
Vitreous, Pearly
Dispersion
Not Available
None
Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Transparent, Translucent, Transparent to translucent
Refractive Index
1.45-2.62
1.37-1.52
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Trigonal
Birefringence
Not Available
Not Available
Clarity
OpaqueAnthony et al
Transparent
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
Covellite Vs Opal Fracture
Fracture is an important parameter when you compare Covellite and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Opal 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 Covellite is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas. Opal fracture is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.
Covellite Vs Opal Luster
A primary knowledge about Covellite vs Opal 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. Covellite exhibits Resinous luster. Opal, on other hand, exhibits Pearly and Vitreous luster.