Powellite Vs Rubellite
Origin
India
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Color
Yellow, Greenish, Blue, Brown, Green, gray
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Yellow
Not Available
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.23
3.01-3.06
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{111} Distinct
Not Available
Mohs Hardness
3.5-4
7-7.5
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Luster
Greasy, Subadamantine
Not Available
Pleochroism
In deeply colored specimens: blue greenAnthony et al
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.974-1.984
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
Not Available
Not Available
Birefringence
Not Available
0.014-0.040
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Powellite Vs Rubellite Fracture
Fracture is an important parameter when you compare Powellite and Rubellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Rubellite 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 UnevenAnthony et al, Handbook of mineralogy (2001), Brittle and Conchoidal. Rubellite fracture is ConchoidalArthur Thomas and Gemstones (2009).
Powellite Vs Rubellite Luster
A primary knowledge about Powellite vs Rubellite 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.