Covellite Vs Gahnospinel
Color
Blue, Blue, Black
Blue
Streak
Grey, Black, gray
Not Available
For which Rashi?
Not Available
Sagittarius, Scorpio
Planet
Not Available
Pluto
Element of Planets
Not Available
Not Available
Energy
Not Available
Projective
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Hephaestus
Not to wear with
Not Available
Not Available
Powers
Not Available
Money
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Flexible
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
3.65-4.55
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {0001}
None, but may exhibit slight parting
Mohs Hardness
Not Available
7.5-8
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Pleochroism
Marked
AbsentWalter Schumann
Dispersion
Not Available
Not Available
Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Gemmological Tables (2004)
Refractive Index
1.45-2.62
1.735-1.790
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Isometric
Birefringence
Not Available
Not Available
Clarity
OpaqueAnthony et al
TransparentUlrich Henn and Claudio C. Milisenda
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 Gahnospinel Fracture
Fracture is an important parameter when you compare Covellite and Gahnospinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Gahnospinel 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 Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle and Metallic. Gahnospinel fracture is ConchoidalArthur Thomas and Gemstones (2009).
Covellite Vs Gahnospinel Luster
A primary knowledge about Covellite vs Gahnospinel 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. Gahnospinel, on other hand, exhibits Vitreous luster.
