Petr Hykš:
Bismuth in reflected light (PPL)
Petr Hykš:
Copper & cuprite in reflected light (PPL)
Petr Hykš:
Copper & cuprite in reflected light (PPL)
Petr Hykš:
Gold in reflected light (PPL)
Petr Hykš:
Pyrite, chalcopyrite & sphalerite observed in reflected light (PPL)
Petr Hykš:
Pyrite & secondary minerals observed in reflected light (PPL)
Petr Hykš:
Pyrite & chalcopyrite observed in reflected light (PPL)
Petr Hykš:
Pyrite, chalcopyrite & sphalerite observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, sphalerite (with chalcopyrite inclusions) & pyrhotine observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, sphalerite (with chalcopyrite inclusions) & pyrhotine observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, sphalerite (with chalcopyrite inclusions) & pyrhotine observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, sphalerite (with chalcopyrite inclusions) & pyrhotine observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, sphalerite & galena observed in reflected light (PPL)
Petr Hykš:
Galena observed in reflected light (PPL)
Petr Hykš:
Pyrite, chalcopyrite, sphalerite, galena & tetraedrite in reflected light (PPL)
Petr Hykš:
Pyrite, chalcopyrite, sphalerite, galena & tetraedrite in reflected light (PPL)
Petr Hykš:
Pyrite, chalcopyrite, sphalerite, galena & tetrahedrite observed in reflected light (PPL)
Petr Hykš:
Pyrite, chalcopyrite, sphalerite, galena & tetraedrite in reflected light (PPL)
Petr Hykš:
Pyrite, chalcopyrite, sphalerite & tetrahedrite observed in reflected light (PPL)
Petr Hykš:
Pyrite (& markasite?), sphalerite, galena & pyrhotine in reflected light (PPL)
Petr Hykš:
Chalcopyrite, pyrite?, pyrhotine & sphalerite observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, pyrite?, pyrhotine & sphalerite observed in reflected light (PPL)
Petr Hykš:
Sphalerite, chalcopyrite & bornite observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, sphalerite & covellite in reflected light (PPL)
Petr Hykš:
Chalcopyrite, bornite & covellite observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, bornite & covellite observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, bornite & covellite observed in reflected light (PPL)
Petr Hykš:
Chalcopyrite, bornite & covellite observed in reflected light (PPL)
Petr Hykš:
Arsenopyrite observed in reflected light (XPL)
Petr Hykš:
Arsenopyrite observed in reflected light (PPL)
