Origin
Canada
Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Color: color change, from bluish green (daylight) to purple, red or brown (incandescent light), Hardness: 8, Refractive index: 1.74 1.77, Density: 3.68 3.80, Chemical composition: BeAl2O4, Crystal structure: orthorhombic, Origins: Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma
Color
Reddish, White, Violet, gray, Black, Reddish, White, Violet, gray, Black
Green
Streak
Black
Not Available
For which Rashi?
Not Available
Scorpio
Planet
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Venus
Element of Planets
Not Available
Earth
Finger
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Ring Metal
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Energy
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Projective, Receptive
Deities
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Not to wear with
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Powers
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Love
Planetary
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Talisman
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Tenacity
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
6.3
3.69-3.81
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
Not Available
Cleavage
{100} Good, {010} Good, {001} Good
1,1 ; 3,2.
Chemical Composition
CoAsSAnthony et al , Handbook of mineralogy (2001)
BeAl 2 O 4
Luster
Not Available
Vitreous
Pleochroism
Very weak
Not Available
Dispersion
Not Available
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Transparency
Gems
Transparent, Transparent to nearly opaque
Refractive Index
Not Available
1.739-1.770
Optic Character
Not Available
Biaxial/+
Crystal System
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
Orthorhombic
Birefringence
Not Available
0.007-0.010
Neurological
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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 Alexandrite Fracture
Fracture is an important parameter when you compare Cobaltite and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cobaltite Vs Alexandrite 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 Brittle, Handbook of mineralogy (2001) More from other references, Handbook of mineralogy (2001) More from other references, Metallic, UnevenAnthony et al and UnevenAnthony et al.
Cobaltite Vs Alexandrite Luster
A primary knowledge about Cobaltite vs Alexandrite 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. Alexandrite, on other hand, exhibits Vitreous luster.