Baddeleyite

Baddeleyite is a rare zirconium oxide mineral (ZrO2 or zirconia), occurring in a variety of monoclinic prismatic crystal forms. It is transparent to translucent, has high indices of refraction (nα=2.130, nβ=2.190, and nγ=2.200), and ranges from colorless to yellow, green, and dark brown. The mineral has a specific gravity of 5.5 to 6 and a Mohs hardness of 6.5. Baddeleyite is a refractory mineral, with a melting point of 2700 °C. Hafnium is a substituting impurity and may be present in quantities ranging from 0.1 to several percent.
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Noun
1. a mineral consisting of zirconium oxide
(hypernym) mineral
(substance-meronym) zirconium, Zr, atomic number 40

General Information:
 Chemical Formula:
ZrO2
 Composition:
(Molecular Weight = 123.22 gm)
Zirconium 74.03 % Zr
Oxygen 25.97 % O 
 Empirical Formula:
ZrO2
 Environment:
Gem gravels and high temperature veins.
 Locality:
Caldas, Minas Gerais and Jacupiranga, Sao Paulo, Brazil.
Physical Properties:
 Cleavage:
[001] Distinct
 Color:
brown, brownish black, colorless, green, or greenish brown.
 Density:
5.5 - 6, Average = 5.75
 Diaphaniety:
Transparent to translucent
 Habits:
Tabular - Form dimensions are thin in one direction., Crystalline - Coarse - Occurs as well-formed coarse sized crystals.,
 Hardness:
6.5 - Pyrite
 Luster:
Adamantine
 Streak:
white
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m baddeleyite

B: (Kimia) badeleyit; zirkonia alam
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