Beta quartz crystals from Dal'negorsk,Russia. Beta quartz is formed at higher temperatures and pressures than normal quartz. Dimensions: 5 x 3 x 2 cm | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Schneider, Mark A. |
Taille de l’image : | 2989 px × 4480 px |
Model Release : | Non requis |
Restrictions : |
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