Achroite Vs Uvite
Origin
Afghanistan, Sri Lanka
  
Sri Lanka
  
Color
Colorless, Blue
  
Red, Brown, Black
  
Streak
Not Available
  
Brown
  
For which Rashi?
Not Available
  
Not Available
  
Planet
Not Available
  
Not Available
  
Element of Planets
Not Available
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Not Available
  
Deities
Not Available
  
Not Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Not Available
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.90-3.40
  
2.97-3.14
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Uneven, Conchoidal, Brittle
  
Cleavage
Not Available
  
{1011} Indistinct
  
Mohs Hardness
7-7.5
  
Not Available
  
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
  
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Luster
Not Available
  
Vitreous
  
Pleochroism
Not Available
  
Pale yellow colorlessAnthony et al
  
Transparency
Transparent, Translucent
  
Transparent
  
Refractive Index
1.614-1.666
  
1.614-1.666
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
Not Available
  
Birefringence
0.014-0.040
  
0.014-0.032
  
Clarity
Transparent
  
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
  
Achroite Vs Uvite Fracture
Fracture is an important parameter when you compare Achroite and Uvite Physical Properties. It is necessary to understand the significance of these properties, before you compare Achroite Vs Uvite 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 Achroite is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven. Uvite fracture is Brittle, Conchoidal and Uneven.
Achroite Vs Uvite Luster
A primary knowledge about Achroite vs Uvite 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. Uvite, on other hand, exhibits Vitreous luster.