Jeremejevite Vs Powellite
Origin
Southern and central Africa
India
Color
Yellow, Blue, Colorless, White
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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Energy
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Finger
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Ring Metal
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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
3.28-3.31
4.23
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
None observed
{111} Distinct
Mohs Hardness
6.5-7.5
3.5-4
Chemical Composition
Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Greasy, Subadamantine
Pleochroism
Colorless
In deeply colored specimens: blue greenAnthony et al
Dispersion
Not Available
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Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.638-1.650
1.974-1.984
Optic Character
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Crystal System
Hexagonal
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Birefringence
0.0130
Not Available
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Jeremejevite Vs Powellite Fracture
Fracture is an important parameter when you compare Jeremejevite and Powellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Jeremejevite 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 Jeremejevite is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Brittle. Powellite fracture is UnevenAnthony et al, Handbook of mineralogy (2001), Brittle and Conchoidal.
Jeremejevite Vs Powellite Luster
A primary knowledge about Jeremejevite 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. Jeremejevite exhibits Vitreous luster. Powellite, on other hand, exhibits Greasy and Subadamantine luster.