Cavansite Vs Mellite
Origin
India
Southern and central Africa
Color
Blue, Greenish, Greenish, Blue
Brown, Brownish, White, Colorless, Yellow
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
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Durability
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Specific Gravity
2.25-2.33
1.58-1.60
Fracture
Brittle, Metallic, Brittle, Metallic
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Good on {010}
{011} Imperfect
Chemical Composition
Ca(VO)Si4O10•4(H2O)
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Luster
Vitreous, Pearly
Vitreous
Pleochroism
Visible: X=Z= colorless Y= blue
Weak: yellowish brown yellowAnthony et al
Dispersion
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Transparency
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Gemmological Tables (2004) More from other references
Refractive Index
1.542
1.509-1.541
Optic Character
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Crystal System
Orthorhombic
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Birefringence
0.009
0.030
Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
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 Mellite Fracture
Fracture is an important parameter when you compare Cavansite and Mellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cavansite Vs Mellite 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. Mellite fracture is Brittle, Conchoidal, ConchoidalAnthony et al, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Handbook of mineralogy (2001).
Cavansite Vs Mellite Luster
A primary knowledge about Cavansite vs Mellite 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. Mellite, on other hand, exhibits Vitreous luster.