RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY
Desert rose of gypsum crystals. Petal-shaped crystal aggregates of tabular gypsum (hydrated calcium sulphate), which form in arid regions such as the Sahara Desert. The process is a result of early mineral diagenesis (formation of rock from a sediment), especially in salt flats where water evaporation rates are high. The crystals commonly incorporate aeolian (wind-blown) sand grains which contribute to the mineral colour and give it a sandy crystalline texture.
Model release not required. Property release not required.
Contact us if you require the original or other formats.