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Pollucite Vs Scheelite


Scheelite Vs Pollucite


Astrology

Origin
Afghanistan, Southern and central Africa  
Switzerland, Australia, Brazil  

Color
Grey, White, Colorless, gray, Pale pink, Blue  
Yellow, Colorless, White, Brownish, Reddish  

Streak
White  
White  

For which Rashi?
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-  

Planet
-  
-  

Element of Planets
-  
-  

Energy
-  
-  

How to Wear?
  
  

Finger
-  
-  

Ring Metal
-  
-  

Deities
-  
-  

Not to wear with
-  
-  

Powers
-  
-  

Birthstone
  
  

Planetary
-  
-  

Talisman
-  
-  

Physical Properties

Tenacity
Brittle  
Brittle  

Solubility
Readily soluble in HF  
-  

Durability
-  
-  

Specific Gravity
2.86-2.94  
5.9-6.3  

Fracture
Conchoidal, Uneven  
Conchoidal, Uneven  

Cleavage
None observed  
On {101}, distinct; on {112}, interrupted; on {001}, indistinct  

Mohs Hardness
6.5-7  
4.5-5  

Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references  
CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references  

Optical Properties

Luster
Vitreous, Greasy  
Vitreous, Adamantine  

Pleochroism
-  
Definite dichoric in yellow (yellow to orange-brown)  

Dispersion
0.01  
99+
0.04  
36

Transparency
Transparent, Translucent  
Translucent, Transparent  

Refractive Index
1.517-1.525  
1.918-1.936  

Optic Character
-  
-  

Crystal System
Isometric  
tetragonal  

Birefringence
-9999  
0.016  

Clarity
Transparent  
Translucent  

Benefits

Physical
  
  

Neurological
-  
-  

Cardiovascular
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-  

Respiratory
Good  
-  

Reproductive
-  
-  

Digestive
-  
-  

Psychology
-  
Awareness  

Healing
-  
Physical healing  

Qualities Associated
Harmony  
Balance & Clarity  

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Pollucite Vs Scheelite Fracture

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

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Pollucite Vs Scheelite Luster

A primary knowledge about Pollucite vs Scheelite 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. Pollucite exhibits Vitreous and Greasy luster. Scheelite, on other hand, exhibits Vitreous and Adamantine luster.

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