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Pleonaste Vs Danburite


Danburite Vs Pleonaste


Astrology

Origin
Madagascar, Sri Lanka   
USA, Mexico, Brazil, Switzerland, Sri Lanka, Burma, Madagascar, Color: colorless, light yellow, light pink, Hardness: 7, Refractive index: 1.63 1.64, Density: 2.98 3.03, Chemical composition: Ca(B2Si2O8), Crystal structure: orthorhombic, Origins: USA, Mexico, Brazil, Germany, Switzerland, Sri Lanka, Burma, Madagascar, Japan. Colorless danburites are common, with light pink or yellowish stones being more rare and expensive. Only eye clean pieces are valuable.   

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

Streak
Not Available   
White   

For which Rashi?
Not Available   
Not Available   

Planet
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Element of Planets
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How to Wear?
  
  

Finger
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Not Available   

Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Birthstone
  
  

Planetary
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Talisman
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Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.80   
2.97-3.03   

Fracture
Not Available   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle   

Cleavage
Not Available   
{001} Poor   

Mohs Hardness
8   
7   

Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)   
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties

Luster
Not Available   
Vitreous, Greasy   

Pleochroism
Not Available   
Weak: pale yellow yellow   

Dispersion
Not Available   
0.02   
22

Transparency
Gemmological Tables (2004)   
Gemmological Tables (2004) More from other references   

Refractive Index
1.780   
1.627-1.639   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Not Available   
Orthorhombic   

Birefringence
Not Available   
0.006   

Clarity
Gemmological Tables (2004)   
TransparentUlrich Henn and Claudio C. Milisenda   

Benefits

Physical
  
  

Neurological
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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
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Pleonaste Vs Danburite Fracture

Fracture is an important parameter when you compare Pleonaste and Danburite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pleonaste Vs Danburite 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. Danburite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven.

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Pleonaste Vs Danburite Luster

A primary knowledge about Pleonaste vs Danburite 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. Danburite, on other hand, exhibits Greasy and Vitreous luster.

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