Uvite Vs Tourmaline
Origin
Sri Lanka
  
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
  
Color
Red, Brown, Black
  
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
  
Streak
Brown
  
White
  
For which Rashi?
Not Available
  
Libra
  
Planet
Not Available
  
Venus, Mars
  
Element of Planets
Not Available
  
Water
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Projective
  
Deities
Not Available
  
Venus
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Love, Courage
  
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
2.97-3.14
  
2.85-3.35
  
Fracture
Uneven, Conchoidal, Brittle
  
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{1011} Indistinct
  
Indistinct
  
Mohs Hardness
Not Available
  
7-7.5
  
Chemical Composition
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
  
Luster
Vitreous
  
Vitreous
  
Pleochroism
Pale yellow colorlessAnthony et al
  
typically moderate to strong
  
Transparency
Transparent
  
Transparent, Translucent, Transparent to opaque
  
Refractive Index
1.614-1.666
  
1.614-1.666
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
Trigonal
  
Birefringence
0.014-0.032
  
0.014-0.040
  
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
  
Uvite Vs Tourmaline Fracture
Fracture is an important parameter when you compare Uvite and Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Uvite Vs Tourmaline 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 Uvite is Brittle, Conchoidal and Uneven. Tourmaline fracture is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Uvite Vs Tourmaline Luster
A primary knowledge about Uvite vs Tourmaline 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 exhibits Vitreous luster. Tourmaline, on other hand, exhibits Vitreous luster.