Origin
USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Color: violet, purple-violet, Hardness: 7, Refractive index: 1.54 1.55, Density: 2.65 2.66, Chemical composition: SiO2, Crystal structure: hexagonal, Lustre: vitreous, Origins: Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, USA, East Africa, Zambia, Namibia, Madagascar, India, Sri Lanka, Russia, Brazil, Uruguay, Bolivia, Argentina, Australia, Brazil, Uruguay, Bolivia, Argentina, Australia
  
China, Canada
  
Color
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
  
Green, Green, Yellow, Brown, White, gray, Black
  
Streak
White
  
Not Available
  
For which Rashi?
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
  
Not Available
  
Planet
Not Available
  
Not Available
  
Element of Planets
Water
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Receptive
  
Not Available
  
Deities
Diana
  
Not Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Love, Courage
  
Not Available
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble in common solvents
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
2.90-3.10
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Splintery, Granular, Splintery, Granular, Gemstones (2009)
  
Cleavage
Indiscernible
  
Not Available
  
Mohs Hardness
7
  
6-6.5
  
Chemical Composition
SiO2
  
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
  
Luster
Vitreous
  
Vitreous, Greasy
  
Pleochroism
None
  
None
  
Dispersion
Not Available
  
Transparency
Transparent, Transparent to translucent
  
Translucent
  
Refractive Index
1.544-1.553
  
1.600-1.627
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Trigonal
  
monoclinic
  
Birefringence
0.009
  
0.027
  
Clarity
Transparent
  
Translucent
  
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
  
Amethyst Vs Nephrite Fracture
Fracture is an important parameter when you compare Amethyst and Nephrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amethyst Vs Nephrite 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, ConchoidalWalter Schumann and Gemstones of the world (2001). Nephrite fracture is Gemstones (2009), Granular, Granular, Splintery and Splintery.
Amethyst Vs Nephrite Luster
A primary knowledge about Amethyst vs Nephrite 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. Nephrite, on other hand, exhibits Greasy and Vitreous luster.