Natrolite crystals. Slender,radiating crystal needles (white) of the mineral natrolite in their host rock. This mineral,a tectosilicate (Na2Al2Si3O10),belongs to the zeolite group of minerals. Like most zeolites,natrolite occurs in cavities or open cracks in basaltic igneous rocks. This sample is 10.5 centimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5138 px × 3425 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |