Covellite Vs Andalusite
Origin
Mexico
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Color
Blue, Black
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Streak
Grey, Black, gray
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Venus
Element of Planets
Not Available
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Energy
Not Available
Not Available
Finger
Not Available
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Ring Metal
Not Available
Not Available
Deities
Not Available
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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
Flexible
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
3.05-3.21
Fracture
Not Available
Uneven, Subconchoidal, Splintery
Cleavage
Perfect on {0001}
Good on {110}, poor on {100}
Mohs Hardness
Not Available
7.5
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Resinous
Vitreous, Greasy
Pleochroism
Marked
strongly trichroic
Transparency
OpaqueAnthony et al
Transparent, Translucent
Refractive Index
1.45-2.62
1.627-1.650
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Orthorhombic
Birefringence
Not Available
0.009-0.010
Clarity
OpaqueAnthony et al
Transparent
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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Covellite Vs Andalusite Fracture
Fracture is an important parameter when you compare Covellite and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Andalusite 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. Andalusite fracture is Uneven, Subconchoidal and Splintery.
Covellite Vs Andalusite Luster
A primary knowledge about Covellite vs Andalusite 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. Andalusite, on other hand, exhibits Vitreous and Greasy luster.
