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Almandine Vs Powellite


Powellite Vs Almandine


Astrology

Origin
Austria, Brazil, Canada, India, Madagascar, Russia, Sri Lanka, USA   
India   

Color
Red, Brown, Brownish, Red, Red, Black, Brown, Brownish, Red, Red, Black, Brown, Brownish, Red, Red, Black   
Yellow, Greenish, Blue, Brown, Green, gray   

Streak
White   
Yellow   

For which Rashi?
Not Available   
Not Available   

Planet
Not Available   
Not Available   

Element of Planets
Not Available   
Not Available   

How to Wear?
  
  

Finger
Not Available   
Not Available   

Ring Metal
Not Available   
Not Available   

Energy
Not Available   
Not Available   

Deities
Not Available   
Not Available   

Not to wear with
Not Available   
Not Available   

Powers
Not Available   
Not Available   

Birthstone
  
  

Planetary
Not Available   
Not Available   

Talisman
Not Available   
Not Available   

Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.95-4.30   
4.23   

Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal   
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   

Cleavage
none   
{111} Distinct   

Mohs Hardness
7-7.5   
3.5-4   

Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties

Luster
Greasy, Vitreous   
Greasy, Subadamantine   

Pleochroism
None   
In deeply colored specimens: blue greenAnthony et al   

Dispersion
0.03   
15
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Transparent   

Refractive Index
1.770-1.820   
1.974-1.984   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Not Available   

Birefringence
Not Available   
Not Available   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

Benefits

Physical
  
  

Neurological
Not Available   
Not Available   

Cardiovascular
Not Available   
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Respiratory
Not Available   
Not Available   

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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Almandine Vs Powellite Fracture

Fracture is an important parameter when you compare Almandine and Powellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Almandine 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 Almandine is Brittle, Brittle, Brittle, Conchoidal, Conchoidal, Conchoidal, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009). Powellite fracture is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al.

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Almandine Vs Powellite Luster

A primary knowledge about Almandine 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. Almandine exhibits Greasy and Vitreous luster. Powellite, on other hand, exhibits Greasy and Subadamantine luster.

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Red Gemstones


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