Rigby (1989a, 126) notes a variety in colour, from iron-free white to iron-rich dark red, and texture for this fabric. Samples represented here are united by a typically pink (10YR 6/8) break with slightly lighter surfaces, pale orange (2.5YR 7/8, 5YR 7/6) to pink (2.5YR 7/6) or cream (7.5YR 8/6), unless fumed. Fumed surfaces, present on a range of unstamped beaker forms, are here light (2/5YR 7/8-6/8, 5YR 5.2–4/2) to darker (10R 3/1) brown, although other products vary from glossy black on dark red fabrics to a pearly grey haze on all matrix colours. Our samples are hard with a smooth break and surface.
This fabric has well-sorted inclusions set in a dense, clean clay matrix, containing common well-sorted quartz, usually between 0.1–0.2mm, occasionally to 0.4mm. In some sherds sparse red iron-rich inclusions of a similar size and white ?clay pellets to 0.5mm are also present. It is this fabric variant which is illustrated on Plate 11, although the coarser inclusions are not visible. Another sample (BM registration no. P1976.5-1.846) has a silty matrix.
Two samples of GAB TR 3 were available for examination and, although slightly different from each other, both are fine textured with well-sorted inclusions that rarely exceed 0.1 or 0.2mm. They are dominated by quartz, with a similar range of other inclusions, in order of decreasing frequency as common to sparse, comprising opaques, chert, polycrystalline quartz and feldspar. Occasionally opaques and clay pellets measure between 0.3–0.5mm. Muscovite mica ranges between sparse and common.
A source in Gallia-Belgica is assumed, despite the lack of kiln evidence (V Rigby, pers comm).
Royal Museum and Art Gallery, Canterbury (Tiberio-Claudian forms and fabrics); Chichester District Museum (Tiberio-Claudian forms and fabrics); Colchester Museums; Ipswich Museum; Department of Prehistoric & Romano-British Antiquities, The British Museum
Holwerda, J H, 1941 De Belgische Waar in Nijmegen, Beschrijuing van de verzameling van het Museum G M Kam te Nijmegen 2, Nijmegen (Tiberio-Claudian forms and fabrics)
Rigby, V, 1989a Pottery from the Iron Age cemetery, in Verulamium. The King Harry Lane site (I M Stead & V Rigby), Engl Heritage Archaeol Rep 12, 112–210 (Tiberio-Claudian forms and fabrics)