Covellite Vs Zoisite
Origin
Mexico
Pakistan, Tanzania
Color
Blue, Black
Brown, gray, Green, Blue, rose, Red
Streak
Grey, Black, gray
White, Colorless
Specific Gravity
4.6-4.76
3.20-3.50
Fracture
-
Uneven, Conchoidal, Even
Cleavage
Perfect on {0001}
Perfect {010} imperfect {100}
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca2Al3(SiO4)3(OH)
Pleochroism
Marked
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Transparency
OpaqueAnthony et al
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.45-2.62
1.685-1.707
Crystal System
Hexagonal
Orthorhombic
Birefringence
-9999
0.006-0.018
Clarity
OpaqueAnthony et al
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Psychology
Transformation
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
-
Covellite Vs Zoisite Fracture
Fracture is an important parameter when you compare Covellite and Zoisite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Zoisite 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. Zoisite fracture is Uneven, Conchoidal and Even.
Covellite Vs Zoisite Luster
A primary knowledge about Covellite vs Zoisite 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. Zoisite, on other hand, exhibits Vitreous luster.