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Amethyst Vs Prehnite


Prehnite Vs Amethyst


Astrology

Origin
USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, East Africa, Namibia, Brazil  
Australia, Southern and central Africa, France  

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

Streak
White  
Colorless  

For which Rashi?
Pisces, Scorpio, Sagittarius  
Libra  

Planet
Not Available  
Venus  

Element of Planets
Water  
Earth  

Energy
Not Available  
Not Available  

How to Wear?
  
  

Finger
Not Available  
Not Available  

Ring Metal
Not Available  
Not Available  

Deities
Diana  
Freya  

Not to wear with
Not Available  
Not Available  

Powers
Love, Courage  
Not Available  

Birthstone
  
  

Planetary
Not Available  
Not Available  

Talisman
Not Available  
Not Available  

Physical Properties

Tenacity
Not Available  
Brittle  

Solubility
insoluble in common solvents  
Not Available  

Durability
Not Available  
Not Available  

Specific Gravity
2.65  
2.80-2.95  

Fracture
Conchoidal, ConchoidalWalter Schumann  
Uneven  

Cleavage
Indiscernible  
Distinct on [001]  

Mohs Hardness
7  
6-6.5  

Chemical Composition
SiO2  
Ca2Al2Si3O12(OH)  

Optical Properties

Luster
Vitreous  
Vitreous  

Pleochroism
None  
Not Available  

Dispersion
0.01  
27
None  

Transparency
Transparent, Transparent to translucent  
Translucent  

Refractive Index
1.544-1.553  
1.611-1.673  

Optic Character
Not Available  
Not Available  

Crystal System
Trigonal  
Orthorhombic  

Birefringence
0.009  
0.021-0.033  

Clarity
Transparent  
TranslucentHerve Nicolas Lazzarelli  

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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Amethyst Vs Prehnite Fracture

Fracture is an important parameter when you compare Amethyst and Prehnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amethyst Vs Prehnite 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 Amethyst is Conchoidal and ConchoidalWalter Schumann. Prehnite fracture is Uneven.

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Amethyst Vs Prehnite Luster

A primary knowledge about Amethyst vs Prehnite 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. Amethyst exhibits Vitreous luster. Prehnite, on other hand, exhibits Vitreous luster.

Semi Precious

Semi Precious


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