Prehnite Vs Covellite
Origin
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Mexico
Color
Green, Colorless, gray, Yellow, White
Blue, Blue, Black
Streak
Colorless
Grey, Black, gray
For which Rashi?
Libra
Not Available
Planet
Venus
Not Available
Element of Planets
Earth
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Not Available
Deities
Freya
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
Brittle
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
4.6-4.76
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Distinct on [001]
Perfect on {0001}
Mohs Hardness
6-6.5
Not Available
Chemical Composition
Ca2Al2Si3O12(OH)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Pleochroism
AbsentWalter Schumann
Marked
Dispersion
None
Not Available
Transparency
Translucent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.611-1.673
1.45-2.62
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Hexagonal
Birefringence
0.021-0.033
Not Available
Clarity
TranslucentHerve Nicolas Lazzarelli
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
Prehnite Vs Covellite Fracture
Fracture is an important parameter when you compare Prehnite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Prehnite 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 Prehnite is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow. Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Prehnite Vs Covellite Luster
A primary knowledge about Prehnite 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. Prehnite exhibits Vitreous luster. Covellite, on other hand, exhibits Resinous luster.