Covellite Vs Tanzanite
Origin
Mexico
Tanzania, Yellow, green, Yellow, green
Color
Blue, Blue, Black
Blue
Streak
Grey, Black, gray
White, Colorless
For which Rashi?
Not Available
Sagittarius, Pisces, Virgo, Sagittarius, Pisces, Virgo, Sagittarius, Pisces, Virgo
Planet
Not Available
Not Available
Element of Planets
Not Available
Air, Water, Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Receptive, Projective
Deities
Not Available
Goddess
Not to wear with
Not Available
Not Available
Powers
Not Available
Love, Healing
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Flexible
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
4.6-4.76
3.35
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
Perfect on {0001}
Perfect {010}, imperfect {100}
Mohs Hardness
Not Available
6.5-7
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca2Al3(SiO4)3(OH)
Pleochroism
Marked
Present
Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Transparent, Translucent, Transparent to translucent
Refractive Index
1.45-2.62
1.685-1.707
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Orthorhombic
Birefringence
Not Available
0.006-0.018
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 Tanzanite Fracture
Fracture is an important parameter when you compare Covellite and Tanzanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Tanzanite 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. Tanzanite fracture is Conchoidal, Gemstones of the world (2001), Uneven and UnevenWalter Schumann.
Covellite Vs Tanzanite Luster
A primary knowledge about Covellite vs Tanzanite 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. Tanzanite, on other hand, exhibits Vitreous luster.