site code: A187 (Aalmoezenierstraat 43-47); context information: A187/2/HS23; excavation 2001 (kiln + production waste); attributed to the workshop/pottery company of Hans Boudewijns (atelier De Blompot)
oxidised white-orange fabric; dark brown (PPL), dark brown (XP).
Homogenous matrix, non-calcareous with no optical activity: matrix partly near sintering/vitrification due to overfiring.
- ca. 30-55%
Inclusions
Quartz (++; mono), sedimentary rock detritus (--; quartz arenite), feldspars (--; plagioclase, microcline, orthoclase), muscovite mica (-; el), O/Fe (+), clay pellets (+-; iron-rich).
The coarse fraction consists of fine to medium sand, the fine fraction consists of very fine to fine sand. Grains are generally subrounded to subangular. Overall the fabric is moderately sorted and orientated, close to single spaced.
- ca. 40-50%
Voids
Large vughs and small planar/channel/vughs, calcite and soil infill, moderately aligned.
- ca. 10-20%
Diagnostic features
The fabric is characterized by a homogenous oxidised matrix with no optical activity (overfired: partly vitrified) and moderate porosity. Dominant quartz inclusions with frequent opaques/iron oxides, common iron-rich clay pellets, few muscovite mica, and rare sedimentary rock detritus and feldspars. Overall moderately sorted fabric.
Additional information
Similar to A0053: muscovite possibly altered or burned out, but higher volume of voids, also possible from overfiring.