Fluorite. The specimens at bottom right and middle right are in their natural form,the specimen at centre had been polished and all the other specimens have been cut and polished. Fluorite,or fluorspar,is a halide mineral composed of calcium fluoride | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Biddle, Paul |
Bildgröße: | 4724 px × 5222 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |