Cavansite Vs Vivianite
Origin
India
Southern and central Africa
Color
Blue, Greenish, Greenish, Blue
Blue, Green, Colorless
For which Rashi?
Not Available
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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
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Durability
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Specific Gravity
2.25-2.33
2.64-2.70
Fracture
Brittle, Metallic, Brittle, Metallic
(e.g. graphite).
Cleavage
Good on {010}
{010} Perfect
Mohs Hardness
3-4
Not Available
Chemical Composition
Ca(VO)Si4O10•4(H2O)
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Luster
Vitreous, Pearly
Vitreous, Pearly
Pleochroism
Visible: X=Z= colorless Y= blue
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Dispersion
Not Available
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Transparency
Not Available
Transparent
Refractive Index
1.542
1.560-1.640
Optic Character
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Crystal System
Orthorhombic
Not Available
Birefringence
0.009
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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Cavansite Vs Vivianite Fracture
Fracture is an important parameter when you compare Cavansite and Vivianite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cavansite 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 Cavansite is Brittle, Brittle, Metallic and Metallic. Vivianite fracture is (e.g. graphite)..
Cavansite Vs Vivianite Luster
A primary knowledge about Cavansite 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. Cavansite exhibits Pearly and Vitreous luster. Vivianite, on other hand, exhibits Pearly and Vitreous luster.