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Andalusite Vs Emerald


Emerald Vs Andalusite


Astrology

Origin
Spain, Brazil, USA, Sri Lanka, Burma, Color: strongly pleochroic, reddish brown, pink / yellowish green, Hardness: 7 7.5, Refractive index: 1.63 1.65, Density: 3.13 3.21, Chemical composition: Al2SiO5, Crystal structure: orthorhombic, Lustre: vitreous, greasy, Origins: Spain, Brazil, USA, Sri Lanka, Burma. Discovered in Andalusia (Spain), the andalusite stone is relatively rare, with big crystals over 10 ct. especially rare. Due to its remarkable pleochroism effect, the stone is highly valued by collectors., brown   
Colombia, Zambia, Brazil, Madagascar, Southern and central Africa, Zimbabwe, Russia, India, Pakistan, Australia, USA, Not Available, Mexico, Spain   

Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red   
Green, Green, Blue, Yellow, Grey   

Streak
White   
White   

For which Rashi?
All   
Taurus, Gemini, Aries, Taurus, Gemini, Aries, Taurus, Gemini, Aries   

Planet
Venus   
Venus, Mercury   

Element of Planets
Not Available   
Earth   

How to Wear?
  
  

Finger
Not Available   
Not Available   

Ring Metal
Not Available   
Gold   

Energy
Projective, Receptive   
Receptive   

Deities
Not Available   
Diana, Artemis, Venus, Freyja   

Not to wear with
Not Available   
Red Coral, Natural Pearl, Moonstone, Ruby, Red Coral, Natural Pearl, Moonstone, Ruby   

Powers
Not Available   
Money, Protection, Love, Courage   

Birthstone
  
  

Planetary
Not Available   
Taurus   

Talisman
Not Available   
Gemini   

Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
3.05-3.21   
2.67-2.78   

Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Good on {110}, poor on {100}   
Imperfect on the [0001]   

Mohs Hardness
7.5   
7.5-8   

Chemical Composition
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   
Be3Al2SiO6   

Optical Properties

Luster
Vitreous, Greasy   
Vitreous   

Pleochroism
strongly trichroic   
Strong dichroism: yellow green Lazzarelli   

Dispersion
0.02   
23
0.01   
26

Transparency
Transparent, Translucent   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.627-1.650   
1.565-1.602   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Hexagonal   

Birefringence
0.009-0.010   
0.0040-0.0070   

Clarity
Transparent   
Color grading system   

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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Andalusite Vs Emerald Fracture

Fracture is an important parameter when you compare Andalusite and Emerald Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Emerald 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 Andalusite is Gemstones (2009), Splintery, Subconchoidal, Subconchoidal, Uneven, Uneven and UnevenArthur Thomas. Emerald fracture is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven.

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Andalusite Vs Emerald Luster

A primary knowledge about Andalusite vs Emerald 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. Andalusite exhibits Greasy and Vitreous luster. Emerald, on other hand, exhibits Vitreous luster.

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