Iolite Vs Cobaltite
Origin
Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma
Canada
Color
Blue, Violet, Yellow, Grey
Reddish, White, Violet, gray, Black
Streak
Not Available
Black
For which Rashi?
Libra, Sagittarius, Taurus
Not Available
Planet
Jupiter
Not Available
Element of Planets
Water
Not Available
Energy
Receptive
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
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Deities
Goddess
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
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Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.6-2.7
6.3
Fracture
Not Available
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Cleavage
3,1
{100} Good, {010} Good, {001} Good
Chemical Composition
Mg2Al4Si5O18
CoAsSAnthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Not Available
Pleochroism
Not Available
Very weak
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent, Transparent to translucent
Gems
Refractive Index
1.52-1.56
Not Available
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
Birefringence
Not Available
Not Available
Clarity
Transparent to translucent
Gems
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Iolite Vs Cobaltite Fracture
Fracture is an important parameter when you compare Iolite and Cobaltite Physical Properties. It is necessary to understand the significance of these properties, before you compare Iolite Vs Cobaltite 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. Cobaltite fracture is UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle and Metallic.
Iolite Vs Cobaltite Luster
A primary knowledge about Iolite vs Cobaltite 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.