Gibbsite Vs Grandidierite
Origin
Not Available
Madagascar
Color
Green, White, gray, Green, White, gray
Green
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
2.35
2.85-3.00
Fracture
Fibrous, Difficult, Fibrous
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
{001} Perfect
Perfect
Chemical Composition
Al(OH)3
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Luster
Vitreous, Pearly
Vitreous, Pearly
Pleochroism
colorless.
visible
Dispersion
Not Available
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Transparency
Not Available
Gemmological Tables (2004) More from other references
Refractive Index
Not Available
1.578-1.639
Optic Character
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Crystal System
monoclinic
Orthorhombic
Birefringence
Not Available
0.037-0.039
Clarity
Not Available
Gemmological Tables (2004) 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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Gibbsite Vs Grandidierite Fracture
Fracture is an important parameter when you compare Gibbsite and Grandidierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gibbsite Vs Grandidierite 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 Gibbsite is Difficult, Fibrous and Fibrous. Grandidierite fracture is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas.
Gibbsite Vs Grandidierite Luster
A primary knowledge about Gibbsite vs Grandidierite 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. Gibbsite exhibits Pearly and Vitreous luster. Grandidierite, on other hand, exhibits Pearly and Vitreous luster.