Phenakite Vs Powellite
Origin
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
India
Color
Colorless, Yellow, pink, Red
Yellow, Greenish, Blue, Brown, Green, gray
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
Brittle
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Solubility
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Durability
Not Available
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Specific Gravity
2.90-2.98
4.23
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
{111} Distinct
Mohs Hardness
7.5-8
3.5-4
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Greasy, Subadamantine
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
In deeply colored specimens: blue greenAnthony et al
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.650-1.695
1.974-1.984
Optic Character
Not Available
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Crystal System
Trigonal
Not Available
Birefringence
0.016
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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Phenakite Vs Powellite Fracture
Fracture is an important parameter when you compare Phenakite and Powellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite 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 Phenakite is Brittle, Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001). Powellite fracture is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al.
Phenakite Vs Powellite Luster
A primary knowledge about Phenakite 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. Phenakite exhibits Vitreous luster. Powellite, on other hand, exhibits Greasy and Subadamantine luster.