Usage examples (20)

• Red Rivers, which are tinged with red mud, derived from rocks of porphyry and red gypseous clays in 'the far west.'
• This gypseous or Secondary formation was found to extend, not only over the adjacent hills, but everywhere along the road to
• The superiority which is claimed for Burton ales is attributed to the use of well-water impregnated with sulphate of lime derived from the gypseous deposits of the district.
• The oldest is the Gehannam Formation (ca 40-41 million years old) consisting of white marly limestone and gypseous shale and yielding many skeletons of archaic whales...