Sulphur crystal. Sulphur is non-metallic element. It forms bright yellow polyhedron crystals when able to grow in open space,as in the rock cavity here. This specimen,from Assoro,Sicily,Italy,measures 45 millimetres from tip to tip | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 3518 px × 4986 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |