A number of caves on the Nullarbor Plain contain gypsum speleothems. A gypsum stalactite was first identified by Steve Appleyard on a WASG trip to Kelly Cave. His description was published in The Western Caver in 1983?. Since that time a number of caves have been found that contain large numbers of gypsum speleothems. Here is the first of a number of gypsum photos from the Nullarbor