Wicksite, a new mineral from northeastern Yukon Territory
Wicksite, a new mineral from northeastern Yukon Territory
The Canadian Mineralogist (August 1981) 19, Part 3: 377-380
- Canada
- chemically precipitated rocks
- clastic rocks
- Cretaceous
- crystal chemistry
- ironstone
- Mesozoic
- mineral data
- mineralogy
- minerals
- new minerals
- order-disorder
- phosphates
- physical properties
- sedimentary rocks
- shale
- space groups
- Western Canada
- X-ray data
- Yukon Territory
- Big Bend
- Big Fish River region
- wicksite
Wicksite, NaCa (sub 2) (Fe (super 2+) ,Mn) (sub 4) MgFe (super 3+) (PO (sub 4) ) (sub 6) .2H (sub 2) O, is a dark blue mineral occurring in phosphate nodules in ironstone and shale units, associated with wolfeite, satterlyite and maricite. It is orthorhombic, space group Pbca, with a 12.896, b 12.511, c 11.634 A; indexed XRD data are given: strongest lines 2.753(100), 3.015(80), 2.910(80), 2.118(60) A. Optical data are 2V (sub gamma ) 66(2)o, alpha 1.713(3), beta 1.718(3), gamma 1.728(3), r < v; D 3.54(2) g/cm (super 3) . Electron probe, wet chemical and DTA/TGA analyses gave Al (sub 2) O (sub 3) 0.51, Fe (sub 2) O (sub 3) 7.98, FeO 22.66, MnO 4.72, MgO 3.77, CaO 11.05, Na (sub 2) O 3.08, H (sub 2) O 3.70, P (sub 2) O (sub 5) 41.64, = 99.11.
