General Information:
Chemical Formula:
Na14Ce6Mn++Mn+++Fe++2(Zr,Th)(Si6O18)2(PO4)7·3(H2O)
Composition:
(Molecular Weight = 3,142.39 gm)
Sodium 10.24 % Na
Cerium 26.75 % Ce
Thorium 1.85 % Th
Zirconium 2.18 % Zr
Manganese 3.50 % Mn
Iron 3.55 % Fe
Silicon 10.73 % Si
Phosphorus 6.90 % P
Hydrogen 0.19 % H
Oxygen 34.11 % O
Empirical Formula:
Na14Ce6Mn2+Mn3+Fe2+2Zr0.75Th0.25(Si6O18)2(PO4)7·3(H
IMA Status:
Approved IMA 1987
Locality:
Kangerdluarsuc, Julianehaab district, Greenland.
Physical Properties:
Cleavage:
None
Color:
brown red, dark brown, or black.
Density:
3.4
Diaphaniety:
Opaque
Hardness:
4 - Fluorite
Luster:
Sub Metallic
More details...