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Chromite Vs Poudretteite


Poudretteite Vs Chromite


Astrology

Origin
Southern and central Africa  
Canada, Southern and central Africa  

Color
Black, Brownish, Brown  
Violet, Colorless, pink  

Streak
Brown  
White  

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  
Brittle  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
4.5-4.8  
2.51-2.53  

Fracture
Uneven  
Conchoidal, Splintery  

Cleavage
None, parting may develop along {111}  
None  

Mohs Hardness
5.5  
5  

Chemical Composition
Fe++Cr2O4  
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)  

Optical Properties

Luster
-  
Vitreous  

Pleochroism
none.  
Colorless  

Dispersion
0.04  
39
0.02  
99+

Transparency
-  
-  

Refractive Index
2.08-2.16  
1.511-1.532  

Optic Character
-  
-  

Crystal System
Isometric  
Hexagonal  

Birefringence
-9999  
0.021  

Clarity
-  
TransparentUlrich Henn and Claudio C. Milisenda  

Benefits

Physical
  
  

Neurological
-  
-  

Cardiovascular
-  
-  

Respiratory
Poor  
Good  

Reproductive
-  
-  

Digestive
-  
-  

Psychology
Vitality  
-  

Healing
Emotional healing  
-  

Qualities Associated
Protection  
Love  

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Chromite Vs Poudretteite Fracture

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

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Chromite Vs Poudretteite Luster

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

Brown Gemstones

Brown Gemstones


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