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Foitite Vs Poudretteite


Poudretteite Vs Foitite


Astrology

Origin
Southern and central Africa  
Canada, Southern and central Africa  

Color
Violet, Black  
Violet, Colorless, pink  

Streak
gray, White  
White  

For which Rashi?
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Planet
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Element of Planets
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-  

Energy
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How to Wear?
  
  

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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Birthstone
  
  

Planetary
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Talisman
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-  

Physical Properties

Tenacity
-  
Brittle  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
3.17  
2.51-2.53  

Fracture
-  
Conchoidal, Splintery  

Cleavage
None  
None  

Mohs Hardness
7  
5  

Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)  
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)  

Optical Properties

Luster
Vitreous  
Vitreous  

Pleochroism
Strong: pale lavender dark blueAnthony et al  
Colorless  

Dispersion
0.02  
99+
0.02  
99+

Transparency
TranslucentAnthony et al, Translucent  
-  

Refractive Index
-9999  
1.511-1.532  

Optic Character
-  
-  

Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m  
Hexagonal  

Birefringence
-9999  
0.021  

Clarity
TranslucentAnthony et al  
TransparentUlrich Henn and Claudio C. Milisenda  

Benefits

Physical
  
  

Neurological
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Cardiovascular
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Respiratory
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Good  

Reproductive
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-  

Digestive
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Psychology
Empowerment  
-  

Healing
Emotional healing  
-  

Qualities Associated
Emotional Healing  
Love  

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Foitite Vs Poudretteite Fracture

Fracture is an important parameter when you compare Foitite and Poudretteite Physical Properties. It is necessary to understand the significance of these properties, before you compare Foitite Vs Poudretteite 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. Poudretteite fracture is Conchoidal and Splintery.

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Foitite Vs Poudretteite Luster

A primary knowledge about Foitite vs Poudretteite 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. Foitite exhibits Vitreous luster. Poudretteite, on other hand, exhibits Vitreous luster.

Violet Gemstones

Violet Gemstones


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