Pargasite Vs Polyhalite
Origin
Southern and central Africa, Vietnam
Austria
Color
Green, Black, Brown
Colorless, White, Red, gray, pink
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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Brittle
Solubility
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Soluble
Durability
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Specific Gravity
3.04-3.26
2.78
Fracture
Splintery, Brittle, Uneven
Conchoidal, Brittle
Cleavage
{110} perfect
Perfect on {10 1 }; parting on {010}
Chemical Composition
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
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Luster
Vitreous
Vitreous, Resinous
Pleochroism
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Dispersion
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Transparency
Transparent
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Refractive Index
1.613-1.663
1.546-1.548
Optic Character
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Crystal System
monoclinic
Triclinic
Birefringence
0.020
0.021
Clarity
Transparent
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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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Pargasite Vs Polyhalite Fracture
Fracture is an important parameter when you compare Pargasite and Polyhalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pargasite Vs Polyhalite 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 Pargasite is Brittle, Splintery and Uneven. Polyhalite fracture is Brittle and Conchoidal.
Pargasite Vs Polyhalite Luster
A primary knowledge about Pargasite vs Polyhalite 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. Pargasite exhibits Vitreous luster. Polyhalite, on other hand, exhibits Resinous and Vitreous luster.