Grandidierite Vs Austinite
Color
Green
Colorless, White, Green, White, Green, Brown, Colorless, Green, White, White
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
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Brittle
Solubility
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Easily soluble in cold dilute HCl
Durability
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Specific Gravity
2.85-3.00
4.12
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Brittle, Uneven, Brittle, Uneven
Cleavage
Perfect
Good in two directions parallel to the prism faces {110}
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
CaZn(AsO4)(OH)
Luster
Vitreous, Pearly
Subadamantine, Silky, Fibrous
Pleochroism
visible
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Dispersion
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Transparency
Gemmological Tables (2004) More from other references
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Refractive Index
1.578-1.639
1.759
Optic Character
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.037-0.039
0.024
Clarity
Gemmological Tables (2004) More from other references
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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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Grandidierite Vs Austinite Fracture
Fracture is an important parameter when you compare Grandidierite and Austinite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grandidierite Vs Austinite 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 Grandidierite is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas. Austinite fracture is Brittle, Brittle, Uneven and Uneven.
Grandidierite Vs Austinite Luster
A primary knowledge about Grandidierite vs Austinite 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. Grandidierite exhibits Pearly and Vitreous luster. Austinite, on other hand, exhibits Fibrous, Silky and Subadamantine luster.