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Pyrope Vs Alexandrite


Alexandrite Vs Pyrope


Astrology

Origin
China, Kenya, Russia, Sri Lanka, Zambia   
Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Color: color change, from bluish green (daylight) to purple, red or brown (incandescent light), Hardness: 8, Refractive index: 1.74 1.77, Density: 3.68 3.80, Chemical composition: BeAl2O4, Crystal structure: orthorhombic, Origins: Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma   

Color
Red, pink, Black, orange   
Green   

Streak
White   
Not Available   

For which Rashi?
Not Available   
Scorpio   

Planet
Not Available   
Venus   

Element of Planets
Not Available   
Earth   

How to Wear?
  
  

Finger
Not Available   
Not Available   

Ring Metal
Not Available   
Not Available   

Energy
Not Available   
Projective, Receptive   

Deities
Not Available   
Not Available   

Not to wear with
Not Available   
Not Available   

Powers
Not Available   
Love   

Birthstone
  
  

Planetary
Not Available   
Not Available   

Talisman
Not Available   
Not Available   

Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
insoluble in water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.62-3.87   
3.69-3.81   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   
Not Available   

Cleavage
None   
1,1 ; 3,2.   

Mohs Hardness
7-7.5   
8.5   

Chemical Composition
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
BeAl 2 O 4   

Optical Properties

Luster
Greasy, Vitreous   
Vitreous   

Pleochroism
None   
Not Available   

Dispersion
0.02   
16
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Transparent, Transparent to nearly opaque   

Refractive Index
1.720-1.756   
1.739-1.770   

Optic Character
Not Available   
Biaxial/+   

Crystal System
cubic   
Orthorhombic   

Birefringence
Not Available   
0.007-0.010   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

Benefits

Physical
  
  

Neurological
Not Available   
Not Available   

Cardiovascular
Not Available   
Not Available   

Respiratory
Not Available   
Not Available   

Reproductive
Not Available   
Not Available   

Digestive
Not Available   
Not Available   

Psychology
Not Available   
Not Available   

Healing
Not Available   
Not Available   

Qualities Associated
Not Available   
Not Available   

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Pyrope Vs Alexandrite Fracture

Fracture is an important parameter when you compare Pyrope and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pyrope Vs Alexandrite 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 Pyrope is Brittle, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009).

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Pyrope Vs Alexandrite Luster

A primary knowledge about Pyrope vs Alexandrite 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. Pyrope exhibits Greasy and Vitreous luster. Alexandrite, on other hand, exhibits Vitreous luster.

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