The Kyogle Shire Council opened up a basalt quarry for the supply of road metal some years ago, but it was not until Dr. W.G. Woolnough visited the district in 1923 that it was known that this quarry was a prolific producer of zeolites and calcite. On his report the writer, accompanied by Mr. C. M. G. Friend, visited the quarry with a view to collecting and examining the occurrence. The visit was made possible by the generosity of Mr. Anthony Hordern, and over four hundred specimens, mainly chabazite, were obtained. The collection contains the finest specimens of this mineral yet obtained in Australia.