Powellite Vs Herderite
Origin
India
Southern and central Africa
Color
Yellow, Greenish, Blue, Brown, Green, gray
Colorless, White, Greenish
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
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Solubility
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Durability
Not Available
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Specific Gravity
4.23
2.90-3.02
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{111} Distinct
Indistinct on {110}
Mohs Hardness
3.5-4
5-5.5
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Luster
Greasy, Subadamantine
Vitreous
Pleochroism
In deeply colored specimens: blue greenAnthony et al
Not Available
Dispersion
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Transparency
Transparent
Transparent
Refractive Index
1.974-1.984
1.587-1.642
Optic Character
Not Available
Biaxial/+
Crystal System
Not Available
monoclinic
Birefringence
Not Available
0.028-0.032
Clarity
Transparent
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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Powellite Vs Herderite Fracture
Fracture is an important parameter when you compare Powellite and Herderite Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Herderite 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. Herderite fracture is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal.
Powellite Vs Herderite Luster
A primary knowledge about Powellite vs Herderite 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. Herderite, on other hand, exhibits Vitreous luster.