General Information:
Chemical Formula:
SrCe(CO3)2(OH)·(H2O)
Composition:
(Molecular Weight = 382.78 gm)
Strontium 22.89 % Sr
Cerium 36.60 % Ce
Hydrogen 0.79 % H
Carbon 6.28 % C
Oxygen 33.44 % O
Empirical Formula:
SrCe(CO3)2(OH)·(H2O)
IMA Status:
Approved IMA 1987
Locality:
Narsarsuk, Greenland.
Name Origin:
Named for the composition and from the Greek "curved," in allusion to the rounded and distorted character of the crystals.
Physical Properties:
Cleavage:
None
Color:
brown, brown red, colorless, gray, or gray pink.
Density:
3.9
Diaphaniety:
Transparent to translucent
Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., Pyramidal - Crystals are shaped like pyramids.,
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Vitreous - Greasy
Streak:
white
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