This book also stated that everyone at the time grew azaleas, even if the poorest people had to use an abalone shell as a container.
en.wikipedia.org This was because the parasite infested the digestive tract of the abalones and prevented digestion and absorption of kelp, the abalone's primary food source.
en.wikipedia.org Some of the locally caught seafood include sea urchin roe, sea pineapple, sea cucumber, scallops, abalone and squid.
en.wikipedia.org When the abalone shell is struck, the tiles slide instead of shattering and the protein stretches to absorb the energy of the blow.
en.wikipedia.org These include turquoise, jet, argillite, steatite, red shale, freshwater clam shell, abalone, and spiny oyster.
en.wikipedia.org