Natrolite. Crystals of Natrolite,a silicate of the zeolite group. These slender crystals may grow 1 metre long. Hard and light,they are transparent to pearly in lustre. Found in Midland Valley,Scotland | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Stammers, Sinclair |
Taille de l’image : | 3426 px × 5130 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |