Covellite Vs Dumortierite
Origin
Mexico
Southern and central Africa
Color
Blue, Black
Blue, Violet, Brown, White, Greenish, pink
Streak
Grey, Black, gray
White
For which Rashi?
Not Available
Leo, Sagittarius
Planet
Not Available
Saturn
Element of Planets
Not Available
Water
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Isis
Not to wear with
Not Available
Not Available
Powers
Not Available
Healing
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
3.26-3.41
Fracture
Not Available
Fibrous, ConchoidalWalter Schumann
Cleavage
Perfect on {0001}
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
Not Available
7-8.5
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
AlAl6O3BSi3O18
Pleochroism
Marked
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Dispersion
Not Available
None
Transparency
OpaqueAnthony et al
Translucent, Translucent to opaque
Refractive Index
1.45-2.62
1.669-1.723
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Orthorhombic
Birefringence
Not Available
0.011-0.037
Clarity
OpaqueAnthony et al
Translucent
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 Dumortierite Fracture
Fracture is an important parameter when you compare Covellite and Dumortierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Dumortierite 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. Dumortierite fracture is Fibrous and ConchoidalWalter Schumann.
Covellite Vs Dumortierite Luster
A primary knowledge about Covellite vs Dumortierite 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. Dumortierite, on other hand, exhibits Vitreous luster.
