Agrellite Vs Grandidierite
Color
White, White, Greenish, White, Greenish, White, Greenish
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
2.88
2.85-3.00
Fracture
Not Available
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
perfect [110]
Perfect
Chemical Composition
NaCa2Si4O10F
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Luster
Pearly
Vitreous, Pearly
Pleochroism
colorless.
visible
Dispersion
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Transparency
Not Available
Gemmological Tables (2004) More from other references
Refractive Index
1.567
1.578-1.639
Optic Character
Not Available
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Crystal System
Triclinic
Orthorhombic
Birefringence
0.014
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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Agrellite Vs Grandidierite Fracture
Fracture is an important parameter when you compare Agrellite and Grandidierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Agrellite 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. Grandidierite fracture is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas.
Agrellite Vs Grandidierite Luster
A primary knowledge about Agrellite 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. Agrellite exhibits Pearly luster. Grandidierite, on other hand, exhibits Pearly and Vitreous luster.