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
Southern and central Africa
Color
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
For which Rashi?
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
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Planet
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Element of Planets
Water
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Finger
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Ring Metal
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Energy
Receptive
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Deities
Diana
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Not to wear with
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Powers
Love, Courage
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Planetary
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Talisman
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Tenacity
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Solubility
insoluble in common solvents
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Durability
Not Available
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Specific Gravity
2.65
3.03-3.18
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Indiscernible
{???} Indistinct
Chemical Composition
SiO2
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Pleochroism
None
Very strong: pale yellow colorless
Transparency
Transparent, Transparent to translucent
Transparent
Refractive Index
1.544-1.553
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Birefringence
0.009
0.014-0.032
Clarity
Transparent
Transparent
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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Amethyst Vs Dravite Fracture
Fracture is an important parameter when you compare Amethyst and Dravite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amethyst Vs Dravite 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). Dravite fracture is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Irregular, Uneven and Uneven.
Amethyst Vs Dravite Luster
A primary knowledge about Amethyst vs Dravite 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. Dravite, on other hand, exhibits Vitreous luster.