Grandidierite Vs Rock Crystal
Origin
Madagascar
Sri Lanka
Color
Green
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
White
Not Available
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.00
2.65
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Perfect
Not Available
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
SiO 2Walter Schumann , Gemstones of the world (2001)
Luster
Vitreous, Pearly
Not Available
Pleochroism
visible
AbsentWalter Schumann
Transparency
Gemmological Tables (2004) More from other references
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Refractive Index
1.578-1.639
1.544-1.553
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Not Available
Birefringence
0.037-0.039
0.009
Clarity
Gemmological Tables (2004) More from other references
TransparentWalter Schumann
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
Not Available
Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Grandidierite Vs Rock Crystal Fracture
Fracture is an important parameter when you compare Grandidierite and Rock Crystal Physical Properties. It is necessary to understand the significance of these properties, before you compare Grandidierite Vs Rock Crystal 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. Rock Crystal fracture is ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) and Gemstones of the world (2001).
Grandidierite Vs Rock Crystal Luster
A primary knowledge about Grandidierite vs Rock Crystal 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.