Smithsonite Vs Common Opal
Origin
USA, Southern and central Africa
  
Southern and central Africa
  
Color
Brown, Green, White, gray, Blue, Yellow
  
White, Colorless, Blue, Red, Green, Yellow, Violet
  
Streak
White
  
Not Available
  
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
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.00-4.65
  
1.98-2.50
  
Fracture
Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
  
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Cleavage
Perfect on [1011]
  
Not Available
  
Mohs Hardness
5-5.5
  
5.5-6.5
  
Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Luster
Vitreous, Pearly
  
Not Available
  
Pleochroism
AbsentWalter Schumann
  
AbsentWalter Schumann
  
Dispersion
None
  
Transparency
Translucent
  
Translucent
  
Refractive Index
1.620-1.850
  
1.37-1.52
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Trigonal
  
Not Available
  
Birefringence
0.223-0.227
  
Not Available
  
Clarity
Translucent
  
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
  
Smithsonite Vs Common Opal Fracture
Fracture is an important parameter when you compare Smithsonite and Common Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Smithsonite Vs Common Opal 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 Smithsonite is Brittle, Gemstones of the world (2001) More from other references, Metallic, Sub-Conchoidal, Uneven and UnevenWalter Schumann. Common Opal fracture is Conchoidal, Conchoidal and Gemstones of the world (2001).
Smithsonite Vs Common Opal Luster
A primary knowledge about Smithsonite vs Common Opal 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. Smithsonite exhibits Pearly and Vitreous luster.