Polyhalite Vs Vivianite
Origin
Austria
Southern and central Africa
Color
Colorless, White, Red, gray, pink
Blue, Green, Colorless
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
Brittle
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Solubility
Soluble
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Durability
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Specific Gravity
2.78
2.64-2.70
Fracture
Conchoidal, Brittle
(e.g. graphite).
Cleavage
Perfect on {10 1 }; parting on {010}
{010} Perfect
Mohs Hardness
3.5
Not Available
Chemical Composition
Not Available
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Luster
Vitreous, Resinous
Vitreous, Pearly
Pleochroism
Not Available
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Dispersion
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Transparency
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Transparent
Refractive Index
1.546-1.548
1.560-1.640
Optic Character
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Crystal System
Triclinic
Not Available
Birefringence
0.021
0.054-0.075
Clarity
Not Available
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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Polyhalite Vs Vivianite Fracture
Fracture is an important parameter when you compare Polyhalite and Vivianite Physical Properties. It is necessary to understand the significance of these properties, before you compare Polyhalite Vs Vivianite 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 Polyhalite is Brittle and Conchoidal. Vivianite fracture is (e.g. graphite)..
Polyhalite Vs Vivianite Luster
A primary knowledge about Polyhalite vs Vivianite 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. Polyhalite exhibits Resinous and Vitreous luster. Vivianite, on other hand, exhibits Pearly and Vitreous luster.