These quartz crystals,which formed extremely slowly in small pockets or vugs,have 18 facets (6 sides) and two terminations | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Winters, Charles D. |
Taille de l’image : | 4500 px × 4380 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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