Fluorite crystals. Fluorite,or fluorspar,is a halide mineral composed of calcium fluoride (CaF2). Specimen from Cohuila,Mexico | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5131 px × 3424 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |