also: べんがら
Red iron oxide has been used as a pigment for traditional Japanese buildings.
The red color of this pottery comes from red ocher.
Katakana spelling, reflecting the foreign origin (Bengal) and common in technical or commercial contexts.
From 紅 (べに, 'crimson') + 殻 (がら, 'husk' or 'shell'), but the reading べにがら is a phonetic adaptation of 'Bengal', the region from which the pigment was originally imported.