Dioptase is a vibrant green copper silicate mineral. Its spectacular crystals are prized by collectors. Although these are generally very small,in a few localities,such as in the mines at Tsumeb,Namibia (South West Africa) they can reach an inch or more in size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Arem, Joel |
Bildgröße: | 3855 px × 2553 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
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