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Oligoclase Vs Bertrandite


Bertrandite Vs Oligoclase


Astrology

Origin
Southern and central Africa  
Southern and central Africa  

Color
Colorless, Brown, Greenish, gray  
Colorless, Yellow  

Streak
White  
White  

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
-  
-  

Talisman
-  
-  

Physical Properties

Tenacity
-  
-  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
2.62-2.67  
2.59-2.60  

Fracture
Uneven  
-  

Cleavage
From the Greek, oligos and kasein, little cleavage.  
{001} Perfect, {110} Distinct, {101} Distinct  

Mohs Hardness
6-6.5  
6-7  

Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)  
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)  

Optical Properties

Luster
Vitreous  
Vitreous  

Pleochroism
-  
none.  

Dispersion
0.01  
99+
0.01  
99+

Transparency
-  
TransparentAnthony et al  

Refractive Index
1.538-1.550  
1.583-1.614  

Optic Character
-  
-  

Crystal System
-  
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21  

Birefringence
0.010  
-9999  

Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
TransparentAnthony et al  

Benefits

Physical
  
  

Neurological
Enhances mental clarity and focus  
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Cardiovascular
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Promotes mental clarity  

Respiratory
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-  

Reproductive
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Digestive
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Psychology
Harmony  
Harmony  

Healing
Emotional healing  
Emotional healing  

Qualities Associated
Harmony  
Creativity  

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Oligoclase Vs Bertrandite Fracture

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

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Oligoclase Vs Bertrandite Luster

A primary knowledge about Oligoclase vs Bertrandite 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. Oligoclase exhibits Vitreous luster. Bertrandite, on other hand, exhibits Vitreous luster.

Colorless Gems

Colorless Gems


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