Iolite Vs Covellite
Origin
Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma
Mexico
Color
Blue, Violet, Yellow, Grey
Blue, Black
Streak
-
Grey, Black, gray
For which Rashi?
Libra, Sagittarius, Taurus
-
Element of Planets
Water
-
Specific Gravity
2.6-2.7
4.6-4.76
Cleavage
3,1
Perfect on {0001}
Mohs Hardness
7-7.5
-9999
Chemical Composition
Mg2Al4Si5O18
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Transparency
Transparent, Translucent, Transparent to translucent
OpaqueAnthony et al
Refractive Index
1.52-1.56
1.45-2.62
Crystal System
Orthorhombic
Hexagonal
Birefringence
-9999
-9999
Clarity
Transparent to translucent
OpaqueAnthony et al
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Good
Digestive
Supports digestive health
-
Psychology
Intuition
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Intuition
Manifestation
Iolite Vs Covellite Fracture
Fracture is an important parameter when you compare Iolite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Iolite 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.
Iolite Vs Covellite Luster
A primary knowledge about Iolite 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. Iolite exhibits Vitreous luster. Covellite, on other hand, exhibits Resinous luster.