Tellurite

Tellurite can refer to the mineral composed of tellurium dioxide (TeO2), or to the tellurite ion (TeO32-). Potassium tellurite (K2TeO3)is used together with agar as part of a selective medium for growth of some bacteria (Clauberg medium). It looks very fragile and is flaky in its natural state.
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(n.)
Oxide of tellurium. It occurs sparingly in tufts of white or yellowish crystals.
  

(n.)
A salt of tellurous acid.
  

General Information:
 Chemical Formula:
TeO2
 Composition:
(Molecular Weight = 159.60 gm)
Tellurium 79.95 % Te
Oxygen 20.05 % O 
 Empirical Formula:
TeO2
 Environment:
Of secondary origin resulting from the oxidation of other tellurium compounds.
 Locality:
Nagy-Ag, Rumania.
 Name Origin:
Named after its containing tellurium (Latin, tellus = "earth").
Physical Properties:
 Cleavage:
[010] Perfect
 Color:
yellow orange, white, or straw yellow.
 Density:
5.9
 Diaphaniety:
Subtranslucent to opaque
 Habits:
Acicular - Occurs as needle-like crystals., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
 Hardness:
2 - Gypsum
 Luminescence:
Non-fluorescent.
 Luster:
Adamantine
 Streak:
white
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تلوريت

Eng: tellurite
Urdu: تلورائٹ ۔ تلوریم ملے تیزاب کا نمک ۔