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
Switzerland
Color
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
Brown, Brownish, Yellow, Black, Reddish
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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Brittle
Solubility
insoluble in common solvents
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Durability
Not Available
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Specific Gravity
2.65
3.7-3.8
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Indiscernible
Distinct on {010}
Chemical Composition
SiO2
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Pleochroism
None
X = colorless; Y = pale yellow; Z = golden yellow
Transparency
Transparent, Transparent to translucent
Blue Chart Gem Identification (2010) More from other references
Refractive Index
1.544-1.553
1.736-1.762
Optic Character
Not Available
Not Available
Crystal System
Trigonal
monoclinic
Birefringence
0.009
0.009-0.015
Clarity
Transparent
Blue Chart Gem Identification (2010) More from other references
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 Staurolite Fracture
Fracture is an important parameter when you compare Amethyst and Staurolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amethyst Vs Staurolite 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). Staurolite fracture is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal.
Amethyst Vs Staurolite Luster
A primary knowledge about Amethyst vs Staurolite 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. Staurolite, on other hand, exhibits Resinous luster.