Grandidierite Vs Hiddenite
Origin
Madagascar
USA, Afghanistan, Pakistan, Brazil, Madagascar
Streak
White
Not Available
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
Not Available
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Specific Gravity
2.85-3.00
3.15-3.21
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
Perfect
1,2 prismatic
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
LiAlSi2O6
Luster
Vitreous, Pearly
Vitreous
Pleochroism
visible
Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.578-1.639
1.657-1.681
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
monoclinic
Birefringence
0.037-0.039
0.014-0.016
Clarity
Gemmological Tables (2004) More from other references
TransparentUlrich Henn and Claudio C. Milisenda
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 Hiddenite Fracture
Fracture is an important parameter when you compare Grandidierite and Hiddenite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grandidierite Vs Hiddenite 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. Hiddenite fracture is Gemstones of the world (2001), Gemstones of the world (2001) and UnevenWalter Schumann.
Grandidierite Vs Hiddenite Luster
A primary knowledge about Grandidierite vs Hiddenite 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. Hiddenite, on other hand, exhibits Vitreous luster.