Grandidierite Vs Prasiolite
Streak
White
Not Available
For which Rashi?
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Libra, Sagittarius, Taurus
Planet
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Jupiter
Element of Planets
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Water
Finger
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Ring Metal
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Energy
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Receptive
Deities
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Goddess
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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Brittle
Solubility
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Durability
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Specific Gravity
2.85-3.00
2.65
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
SiO 2Ulrich Henn and Claudio C.
Luster
Vitreous, Pearly
Vitreous
Pleochroism
visible
Very weak: light green pale greenWalter Schumann
Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
Refractive Index
1.578-1.639
1.544-1.553
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.037-0.039
0.009
Clarity
Gemmological Tables (2004) More from other references
Transparent
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 Prasiolite Fracture
Fracture is an important parameter when you compare Grandidierite and Prasiolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grandidierite Vs Prasiolite 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. Prasiolite fracture is Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001).
Grandidierite Vs Prasiolite Luster
A primary knowledge about Grandidierite vs Prasiolite 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. Prasiolite, on other hand, exhibits Vitreous luster.