Origin
USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Color: violet, purple-violet, Hardness: 7, Refractive index: 1.54 1.55, Density: 2.65 2.66, Chemical composition: SiO2, Crystal structure: hexagonal, Lustre: vitreous, Origins: Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, USA, East Africa, Zambia, Namibia, Madagascar, India, Sri Lanka, Russia, Brazil, Uruguay, Bolivia, Argentina, Australia, Brazil, Uruguay, Bolivia, Argentina, Australia
Mexico
Color
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
Blue, Blue, Black
Streak
White
Grey, Black, gray
For which Rashi?
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
Not Available
Planet
Not Available
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Element of Planets
Water
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Receptive
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Deities
Diana
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Not to wear with
Not Available
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Powers
Love, Courage
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
Flexible
Solubility
insoluble in common solvents
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65
4.6-4.76
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Indiscernible
Perfect on {0001}
Mohs Hardness
7
Not Available
Chemical Composition
SiO2
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Transparency
Transparent, Transparent to translucent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.544-1.553
1.45-2.62
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Hexagonal
Birefringence
0.009
Not Available
Clarity
Transparent
OpaqueAnthony et al
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
Not Available
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Amethyst Vs Covellite Fracture
Fracture is an important parameter when you compare Amethyst and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amethyst 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. Fracture observed in Amethyst is Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001). Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Amethyst Vs Covellite Luster
A primary knowledge about Amethyst 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. Amethyst exhibits Vitreous luster. Covellite, on other hand, exhibits Resinous luster.