Hyalite Vs Grandidierite
Origin
Southern and central Africa
Madagascar
Streak
Not Available
White
For which Rashi?
Not Available
Not Available
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
Not Available
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Durability
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Specific Gravity
Not Available
2.85-3.00
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
Not Available
Perfect
Mohs Hardness
5.5-6.5
7.5
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Luster
Not Available
Vitreous, Pearly
Pleochroism
Not Available
visible
Dispersion
Not Available
Not Available
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.37-1.52
1.578-1.639
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
Not Available
0.037-0.039
Clarity
Transparent
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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Hyalite Vs Grandidierite Fracture
Fracture is an important parameter when you compare Hyalite and Grandidierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Hyalite 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 Hyalite is Conchoidal, Conchoidal and Gemstones of the world (2001). Grandidierite fracture is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas.
Hyalite Vs Grandidierite Luster
A primary knowledge about Hyalite 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. Grandidierite, on other hand, exhibits Pearly and Vitreous luster.