Powellite Vs Biotite
Origin
India
Not Available
Color
Yellow, Greenish, Blue, Brown, Green, gray
Brown, Yellow, White, Brown, Greenish, Yellow, White
Streak
Yellow
White, gray
For which Rashi?
Not Available
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Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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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
Not Available
Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
4.23
2.7-3.3
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Even, Yellow, White
Cleavage
{111} Distinct
Perfect on the {001}
Mohs Hardness
3.5-4
2.5-3.0
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Luster
Greasy, Subadamantine
Vitreous, Pearly
Pleochroism
In deeply colored specimens: blue greenAnthony et al
Strong
Dispersion
Not Available
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Transparency
Transparent
Not Available
Refractive Index
1.974-1.984
1.565-1.625
Optic Character
Not Available
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Crystal System
Not Available
monoclinic
Birefringence
Not Available
0.03-0.07
Clarity
Transparent
Not Available
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 Biotite Fracture
Fracture is an important parameter when you compare Powellite and Biotite Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Biotite 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. Biotite fracture is Even, Uneven, White and Yellow.
Powellite Vs Biotite Luster
A primary knowledge about Powellite vs Biotite 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. Biotite, on other hand, exhibits Pearly and Vitreous luster.