Selenite. View of a sample of selenite,a form of gypsum (hydrated calcium sulphate). Gypsum is a common mineral deposit of precipitated salt (sedimentary evaporite). It is used in the making of plaster of Paris for construction,as a retarder in Portland cement,as a flux for pottery and as a fertilizer. This sample is from Utah,USA | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Svensson, Kaj R. |
Taille de l’image : | 3585 px × 2480 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |