Origin
Canada
Sri Lanka, India, Brazil
Color
Reddish, White, Violet, gray, Black, Reddish, White, Violet, gray, Black
Green, Brown, Brown, Colorless, Green, gray, Yellow
Streak
Black
Brownish, White, Brownish, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
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Element of Planets
Not Available
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Energy
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Finger
Not Available
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Ring Metal
Not Available
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
6.3
3.55-3.73
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{100} Good, {010} Good, {001} Good
none
Chemical Composition
CoAsSAnthony et al , Handbook of mineralogy (2001)
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Not Available
Greasy, Vitreous
Pleochroism
Very weak
None
Transparency
Gems
Gemmological Tables (2004) More from other references
Refractive Index
Not Available
1.730-1.760
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
cubic
Birefringence
Not Available
0.020
Clarity
Gems
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Cobaltite Vs Grossular Fracture
Fracture is an important parameter when you compare Cobaltite and Grossular Physical Properties. It is necessary to understand the significance of these properties, before you compare Cobaltite Vs Grossular 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 Cobaltite is UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle and Metallic. Grossular fracture is Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal and Brittle.
Cobaltite Vs Grossular Luster
A primary knowledge about Cobaltite vs Grossular 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. Grossular, on other hand, exhibits Greasy and Vitreous luster.
