General Information:
Chemical Formula:
CaCe(CO3)2F
Composition:
(Molecular Weight = 319.21 gm)
Calcium 12.56 % Ca
Cerium 43.89 % Ce
Carbon 7.53 % C
Oxygen 30.07 % O
Fluorine 5.95 % F
Empirical Formula:
CaCe(CO3)2F
IMA Status:
Approved IMA 1987
Locality:
Narssarssuk, Julianehaab district, Greenland.
Name Origin:
Named for "confounding" having been mistaken for parisite and for the Ce end-member of the series.
Physical Properties:
Cleavage:
[0001] Indistinct
Color:
brown, gray, grayish yellow, or orange.
Density:
3.902 - 4.15, Average = 4.02
Diaphaniety:
Translucent
Habits:
Pseudo Rhombohedral - Crystals show a rhombohedral outline., ,
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Vitreous - Greasy
Streak:
white
More details...