Fayalite Vs Powellite
Origin
Southern and central Africa
India
Color
Yellow, Brown, Black, Black
Yellow, Greenish, Blue, Brown, Green, gray
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
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Durability
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Specific Gravity
4.392
4.23
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
{010} moderate, {100} imperfect
{111} Distinct
Mohs Hardness
6.5-7
3.5-4
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Resinous
Greasy, Subadamantine
Pleochroism
Faint
In deeply colored specimens: blue greenAnthony et al
Dispersion
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Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Transparent
Refractive Index
1.827-1.879
1.974-1.984
Optic Character
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Crystal System
Orthorhombic
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Birefringence
0.042-0.051
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Clarity
TransparentAnthony et al
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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Fayalite Vs Powellite Fracture
Fracture is an important parameter when you compare Fayalite and Powellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite Vs Powellite 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 Fayalite is Brittle, Conchoidal, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001). Powellite fracture is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al.
Fayalite Vs Powellite Luster
A primary knowledge about Fayalite vs Powellite 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. Fayalite exhibits Resinous and Vitreous luster. Powellite, on other hand, exhibits Greasy and Subadamantine luster.