THETI - Ipswich Thetford-type ware

Very fine sandy (white and clear quartz grains) greyware, sparse to moderate mica.

TS description (Patrick Quinn): Moderately well-packed, generally angular silt-sized inclusions of quartz, iron-stained chert and muscovite mica with less common microcline, plagioclase and amphibole. Silt sized-ferruginous inclusions. Less common rounded sand-sized quartz and polycrystalline quartz also present. Rare rounded natural clay and silty textural features. Non-vitrified, reduction fired non-calcareous clay matrix. Many meso-elongate voids. Less sandy, more silty than THET.

Example from Ipswich kiln site.