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Gypsum roses (CaSO4-2H2O), sometimes called Selenite roses, are flower-like crystals often formed from the evaporation of mineralized lakes and seas.

Egypt from Space. Climate: desert; hot, dry summers with moderate winters. Terrain: vast desert plateau interrupted by Nile valley and delta. Natural resources: petroleum, natural gas, iron ore, phosphates, manganese, limestone, gypsum, talc, asbestos, lead, rare earth elements, zinc. Natural hazards: periodic droughts; frequent earthquakes; flash floods; landslides; hot, driving windstorms called khamsin occur in spring; dust storms; sandstorms.

Jewel Cave in South Dakota \\Inpjeca20089513\public drive\Photos\Photos for MWR project\200

Galena-Galena is the natural mineral form of lead(II) sulfide. It is the most important lead ore mineral. Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms. It is often associated with the minerals sphalerite, calcite and fluorite.

Gypsum Selenite Desert Roses Crystal Cluster Free US Shipping