Grandidierite Vs Imperial Topaz
Origin
Madagascar
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Streak
White
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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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Solubility
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Durability
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Specific Gravity
2.85-3.00
3.49-3.57
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Uneven
Cleavage
Perfect
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Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
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Luster
Vitreous, Pearly
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Pleochroism
visible
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Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.578-1.639
1.609-1.643
Optic Character
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Crystal System
Orthorhombic
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Birefringence
0.037-0.039
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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 Imperial Topaz Fracture
Fracture is an important parameter when you compare Grandidierite and Imperial Topaz Physical Properties. It is necessary to understand the significance of these properties, before you compare Grandidierite Vs Imperial Topaz 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. Imperial Topaz fracture is Uneven.
Grandidierite Vs Imperial Topaz Luster
A primary knowledge about Grandidierite vs Imperial Topaz 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.