Powellite Vs Paraiba
Origin
India
Brazil, Mozambique
Color
Yellow, Greenish, Blue, Brown, Green, gray
Blue, Green
Streak
Yellow
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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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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
4.23
3.04-3.13
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
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Cleavage
{111} Distinct
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Mohs Hardness
3.5-4
7-7.5
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
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Luster
Greasy, Subadamantine
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Pleochroism
In deeply colored specimens: blue greenAnthony et al
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Dispersion
Not Available
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Transparency
Transparent
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Refractive Index
1.974-1.984
1.618-1.643
Optic Character
Not Available
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Crystal System
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Birefringence
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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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Powellite Vs Paraiba Fracture
Fracture is an important parameter when you compare Powellite and Paraiba Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Paraiba 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 Powellite is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al.
Powellite Vs Paraiba Luster
A primary knowledge about Powellite vs Paraiba 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. Powellite exhibits Greasy and Subadamantine luster.