Purpurite Vs Grandidierite
Origin
Southern and central Africa
Madagascar
Color
Violet, Brownish, Black, pink, Red, Reddish
Green
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
Not Available
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Specific Gravity
3.2-3.4
2.85-3.00
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
[100] [001] perfect
Perfect
Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Luster
Not Available
Vitreous, Pearly
Pleochroism
StrongArthur Thomas
visible
Dispersion
Not Available
Not Available
Transparency
TranslucentWalter Schumann, Gemstones of the world (2001) More from other references
Gemmological Tables (2004) More from other references
Refractive Index
1.85-1.92
1.578-1.639
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.070
0.037-0.039
Clarity
TranslucentWalter Schumann
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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Purpurite Vs Grandidierite Fracture
Fracture is an important parameter when you compare Purpurite and Grandidierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Purpurite 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 Purpurite is Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas. Grandidierite fracture is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas.
Purpurite Vs Grandidierite Luster
A primary knowledge about Purpurite 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.