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Turritella was an agate made up of many small fossilized shells.[1]


The shells were spiral and cone-shaped, less than an inch (two and a half centimeters) long. The rock substrate was a dark brown. It was quarried in slabs and could be used instead of marble for facings or it was cut for inlay work. A typical price was 8 sp per pound (18 sp/kg).[1]


It was believed this hardstone had magical properties, but it is unknown if they were ever discovered.[2]




  1. 1.0 1.1 1.2 1.3 Jeff Grubb and Ed Greenwood (1990). Forgotten Realms Adventures. (TSR, Inc), pp. 141–142. ISBN 0-8803-8828-5.
  2. Ed Greenwood, Eric L. Boyd (1996). Volo's Guide to All Things Magical. (TSR, Inc), p. 52. ISBN 0-7869-0446-1.

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