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Foitite Vs Tantalite


Tantalite Vs Foitite


Astrology

Origin
Southern and central Africa  
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe  

Color
Violet, Black  
Brown  

Streak
gray, White  
Brownish, Red, Black  

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
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Solubility
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Durability
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-  

Specific Gravity
3.17  
5.2  

Fracture
-  
Subconchoidal, Conchoidal  

Cleavage
None  
Good in one direction  

Mohs Hardness
7  
6-6.5  

Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)  
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references  

Optical Properties

Luster
Vitreous  
Resinous  

Pleochroism
Strong: pale lavender dark blueAnthony et al  
-  

Dispersion
0.02  
99+
0.03  
99+

Transparency
TranslucentAnthony et al, Translucent  
TransparentWalter Schumann  

Refractive Index
-9999  
2.190-2.457  

Optic Character
-  
-  

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

Birefringence
-9999  
0.083  

Clarity
TranslucentAnthony et al  
TransparentWalter Schumann  

Benefits

Physical
  
  

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
Empowerment  
Strength  

Healing
Emotional healing  
Emotional healing  

Qualities Associated
Emotional Healing  
Balance  

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Foitite Vs Tantalite Fracture

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

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Foitite Vs Tantalite Luster

A primary knowledge about Foitite vs Tantalite 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. Tantalite, on other hand, exhibits Resinous luster.

Violet Gemstones

Violet Gemstones


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