NNFSW - North Norfolk fine sandy ware

Silty to fine sandy buff/grey, finer version of NNFSW with mica.

TS description (H. Page): Well-sorted, predominant, sub-angular to sub-rounded, coarse to medium sand sized quartz inclusions. Common elongate muscovite mica, rare plagioclase feldspar, weathered feldspar, iron-stained chert, chert, hornblende and muscovite mica. Moderately heterogeneous, brown, optically active non-calcareous matrix with some rare possibly micritic calcite inclusions. Frequent meso-vughs and channel voids.