Tuesday, August 22, 2017

Figure 85

Photography by Dezidor [left] and M. Violante [right] , PD.
The two types of shellfish found in the western Mediterranean which produce small amounts of purple used for the dyeing of textiles (Pliny Nat Hist. 9.61). The hexaplex trunculus produces a red or violet purple (left), while the haustellum brandaris produces a blue purple (right).

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