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Alexandrite Vs Spessartine


Spessartine Vs Alexandrite


Astrology

Origin
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   
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA   

Color
Green   
Red, Reddish, orange, Brown   

Streak
Not Available   
White   

For which Rashi?
Scorpio   
Not Available   

Planet
Venus   
Not Available   

Element of Planets
Earth   
Not Available   

How to Wear?
  
  

Finger
Not Available   
Not Available   

Ring Metal
Not Available   
Not Available   

Energy
Projective, Receptive   
Not Available   

Deities
Not Available   
Not Available   

Not to wear with
Not Available   
Not Available   

Powers
Love   
Not Available   

Birthstone
  
  

Planetary
Not Available   
Not Available   

Talisman
Not Available   
Not Available   

Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.69-3.81   
4.12-4.18   

Fracture
Not Available   
ConchoidalArthur Thomas, Conchoidal, Brittle   

Cleavage
1,1 ; 3,2.   
{???} Distinct   

Mohs Hardness
8.5   
7-7.5   

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

Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
0.03   
15

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

Refractive Index
1.739-1.770   
1.789-1.820   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Orthorhombic   
Isometric   

Birefringence
0.007-0.010   
0.027   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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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Alexandrite Vs Spessartine Fracture

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

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Alexandrite Vs Spessartine Luster

A primary knowledge about Alexandrite vs Spessartine 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. Alexandrite exhibits Vitreous luster. Spessartine, on other hand, exhibits Vitreous luster.

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