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Red abalone.
Red abalone shell1

Red abalone shell

Red Abalone is a beautiful iridescent shell that can get much larger than its green cousin. A large specimen in good condition has a base value of 10gp.[1]

References Edit

  1. Jeff Grubb and Ed Greenwood (1990). Forgotten Realms Adventures. (TSR, Inc), p. 142. ISBN 0-8803-8828-5.