This fabric is orange-brown (2.5YR 5/8) with red-brown (10R 5/8) surfaces that are sometimes duller and pinker (10R 6/6) in colour. It is hard with a smooth fracture and feel. Forms are similar to those produced by the east Gaulish samian industries.
Colchester samian is essentially a silty fabric, much coarser than Continental ones. A fairly wide variety of size and sorting is represented by our samples, with quartz, limestone, silver mica and black iron-rich grains consistently present. The standard fabric (Plate 107) is fine (<0.2mm) with only sparse inclusions, but in other samples mica and quartz are more visible and limestone may be abundant and measure up to 0.4mm.
This is a slightly micaceous (muscovite with some biotite) clay with common silt-sized quartz and opaques. Rare but regular grains of quartz, including polycrystalline, and redeposited carbonate measure up to 0.25mm or even 0.4mm, as seen in the hand specimen.
Colchester Museums; Department of Archaeology, Univeristy of Durham
Rodwell, W J, 1982 (1983) The production and distribution of pottery and tiles in the territory of the Trinovantes, Essex Archaeol Hist 14, 15–76
Simpson, G, 1982 A revised dating for the Colchester samian kiln, Essex Archaeol Hist 14, 149–53
Storey, J M V, Symonds, R P, Hart, F A, Smith, D M, & Walsh, J N, 1989 A chemical investigation of ‘Colchester’ samian by means of inductively-coupled plasma emission spectrometry, J Roman Pottery Stud 2, 33–43