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Mottramite Vs Blue John


Blue John Vs Mottramite


Astrology

Origin
Not Available   
Not Available   

Color
Brown, Green, Yellow   
White, Colorless, Blue, Red, Green, Yellow, Violet   

Streak
Green, Brownish   
Not Available   

For which Rashi?
Not Available   
Not Available   

Planet
Not Available   
Not Available   

Element of Planets
Not Available   
Not Available   

How to Wear?
  
  

Finger
Not Available   
Not Available   

Ring Metal
Not Available   
Not Available   

Energy
Not Available   
Not Available   

Deities
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Not Available   

Not to wear with
Not Available   
Not Available   

Powers
Not Available   
Not Available   

Birthstone
  
  

Planetary
Not Available   
Not Available   

Talisman
Not Available   
Not Available   

Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
5.9   
3.00-3.25   

Fracture
Sub-Conchoidal, Brittle, Metallic   
Not Available   

Cleavage
None observed   
Not Available   

Mohs Hardness
3   
Not Available   

Chemical Composition
Not Available   
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties

Luster
Greasy   
Not Available   

Pleochroism
Visible X=Y= canary yellow to greenish yellow   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Transparent   

Refractive Index
2.170   
1.432-1.436   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Not Available   

Birefringence
0.150   
Not Available   

Clarity
Not Available   
Transparent   

Benefits

Physical
  
  

Neurological
Not Available   
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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
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Healing
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Qualities Associated
Not Available   
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Mottramite Vs Blue John Fracture

Fracture is an important parameter when you compare Mottramite and Blue John Physical Properties. It is necessary to understand the significance of these properties, before you compare Mottramite Vs Blue John 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 Mottramite is Brittle, Metallic and Sub-Conchoidal.

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Mottramite Vs Blue John Luster

A primary knowledge about Mottramite vs Blue John 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. Mottramite exhibits Greasy luster.

Brown Gemstones

Brown Gemstones


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