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Chromite Vs Powellite


Powellite Vs Chromite


Astrology

Origin
Southern and central Africa  
India  

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

Streak
Brown  
Yellow  

For which Rashi?
-  
-  

Planet
-  
-  

Element of Planets
-  
-  

Energy
-  
-  

How to Wear?
  
  

Finger
-  
-  

Ring Metal
-  
-  

Deities
-  
-  

Not to wear with
-  
-  

Powers
-  
-  

Birthstone
  
  

Planetary
-  
-  

Talisman
-  
-  

Physical Properties

Tenacity
Brittle  
-  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
4.5-4.8  
4.23  

Fracture
Uneven  
Conchoidal  

Cleavage
None, parting may develop along {111}  
{111} Distinct  

Mohs Hardness
5.5  
3.5-4  

Chemical Composition
Fe++Cr2O4  
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)  

Optical Properties

Luster
-  
Greasy, Subadamantine  

Pleochroism
none.  
In deeply colored specimens: blue greenAnthony et al  

Dispersion
0.04  
39
0.03  
99+

Transparency
-  
Transparent  

Refractive Index
2.08-2.16  
1.974-1.984  

Optic Character
-  
-  

Crystal System
Isometric  
-  

Birefringence
-9999  
-9999  

Clarity
-  
Transparent  

Benefits

Physical
  
  

Neurological
-  
-  

Cardiovascular
-  
-  

Respiratory
Poor  
Good  

Reproductive
-  
-  

Digestive
-  
-  

Psychology
Vitality  
-  

Healing
Emotional healing  
Emotional healing  

Qualities Associated
Protection  
Vitality  

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Chromite Vs Powellite Fracture

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

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Chromite Vs Powellite Luster

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

Brown Gemstones

Brown Gemstones


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