Material evidence

Ancient Materials and Manufacture

Material-science and workshop evidence for ceramics, metals, glass, stone, organics, pigments, corrosion, and restoration.

Material evidence

Material-science and workshop evidence for ceramics, metals, glass, stone, organics, pigments, corrosion, and restoration.

Clay body, inclusions, core color, firing atmosphere, hardness, slip, glaze, and break surface reveal manufacture.

Stable patina, active bronze disease, burial accretions, wax, paint, and artificial chemical surfaces must be separated.

Core-forming, casting, free-blowing, mold-blowing, trailing, cutting, weathering, and iridescence leave different evidence.

Petrology, grain, translucency, quarry source, tooling, weathering, breaks, and modern re-carving affect attribution.

Quartz-rich bodies, glaze color, firing defects, molds, and surface weathering help identify ancient glazed materials.

Alloy, solder, joins, hammering, casting, granulation, corrosion, repairs, and modern components require close examination.

Tool marks, internal structure, species law, age, conservation, and modern substitute materials complicate identification.

Species, tool marks, desiccation, waterlogging, consolidants, restorations, and climate history determine survival.

Fiber, spin direction, weave, dye, embroidery, seams, repairs, mount, and conservation record are central evidence.

Original color can survive beneath burial deposits, restorations, shellac, wax, and modern repainting.

Deposits may be authentic burial evidence, later storage damage, conservation residue, or deliberately applied fake patina.

Ancient repairs, old collection repairs, modern fills, overpainting, joins, and composites must be mapped and disclosed.

Unrelated ancient fragments, modern bodies, added handles, recut stones, and fabricated inscriptions create misleading objects.

Casting seams, drill paths, chisel marks, wheel finishing, polishing, sawing, and filing can expose both ancient and modern work.