A New Rhodonite Occurrence in the Cassiar Area, Northern British Columbia

argillite, interbedded basalt and abundant diabase sills. More specifically, the rhodonite is located above a section of grey, black and pale green chert and argillite at the base of the unit [IIPPvs( I ) on Figure 2-15-21 and about 50 metres below an upper section of brightly coloured, maroon, red, green and grey chert and argillite [Unit IIPPvs(2) on Figure 2-15-21, This stratigraphic position holds over at least 4 kilometres strike length, as shown by the two cross-sections in Figure 2-15-3. The immediate host of the rhodonite is well-bedded grey to pale green radiolarian chert with argillite partings. Geological Fieldwork 1989, Paper 1990-1 I-IPPvS ” IIMvs 4