1979, Richard Vincent Dietrich, Brian J. Skinner, Rocks and rock minerals, page 215Some high quality white or variously tinted fine-grained gyprocks, usually referred to as alabaster, were used as interior facing stones and for small statues and carved decorative objects found in Egyptian pyramids
2006, R. Lal, Encyclopedia of soil science 1, page 796The world distribution of gyprock outcrops and the solubility of gypsum restrict the extensive occurrence of gypsic soils to the dry regions
2012, Richard Harris, Building a Market: The Rise of the Home Improvement Industry, page 55Cinder blocks were more durable, however, and soon gypsum was redirected for “gyprock†drywall, a wallboard...
