Origin
Afghanistan, Australia, India, blue, green, blue, green
  
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
  
Color
Green, Blue, gray
  
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
  
Streak
White
  
White
  
For which Rashi?
Sagittarius, Pisces, Aquarius, Sagittarius, Pisces, Aquarius, Sagittarius, Pisces, Aquarius
  
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
  
Planet
Venus, Neptune
  
Not Available
  
Element of Planets
Earth
  
Water
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Receptive
  
Receptive
  
Deities
Buddha
  
Diana
  
Not to wear with
Not Available
  
Not Available
  
Powers
Protection, Courage, Love
  
Love, Courage
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
Not Available
  
Solubility
Soluble
  
insoluble in common solvents
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.90
  
2.65
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Good to perfect_usually N/A
  
Indiscernible
  
Mohs Hardness
5-6
  
7
  
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
  
SiO2
  
Luster
Waxy
  
Vitreous
  
Pleochroism
Weak
  
None
  
Dispersion
None
  
Transparency
Translucent, Opaque
  
Transparent, Transparent to translucent
  
Refractive Index
1.610-1.650
  
1.544-1.553
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Triclinic
  
Trigonal
  
Birefringence
0.040
  
0.009
  
Clarity
Translucent
  
Transparent
  
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
  
Turquoise Vs Amethyst Fracture
Fracture is an important parameter when you compare Turquoise and Amethyst Physical Properties. It is necessary to understand the significance of these properties, before you compare Turquoise Vs Amethyst 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 Turquoise is Brittle, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009). Amethyst fracture is Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001).
Turquoise Vs Amethyst Luster
A primary knowledge about Turquoise vs Amethyst 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. Turquoise exhibits Waxy luster. Amethyst, on other hand, exhibits Vitreous luster.