Origin
Sri Lanka
  
USA
  
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Brown, Brownish, Black, Colorless, Green, gray
  
Red
  
Streak
White, Brownish, Brownish, 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
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
6.86-7.03
  
1.97-2.22
  
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
  
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
  
Not Available
  
Mohs Hardness
6-7
  
6-6.5
  
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
  
Luster
Adamantine, Greasy
  
Not Available
  
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
  
AbsentWalter Schumann
  
Dispersion
None
  
Transparency
Transparent, Translucent
  
Transparent, Translucent
  
Refractive Index
1.990-2.105
  
1.370-1.470
  
Optic Character
Not Available
  
Not Available
  
Crystal System
tetragonal
  
Amorphous
  
Birefringence
0.096-0.098
  
Not Available
  
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
  
Cassiterite Vs Fire Opal Fracture
Fracture is an important parameter when you compare Cassiterite and Fire Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite Vs Fire 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 Cassiterite is ConchoidalArthur Thomas, Gemstones (2009), Irregular, Subconchoidal and Uneven. Fire Opal fracture is Conchoidal, Conchoidal and Gemstones of the world (2001).
Cassiterite Vs Fire Opal Luster
A primary knowledge about Cassiterite vs Fire 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. Cassiterite exhibits Adamantine and Greasy luster.