Eesti: Kvartsi kristallid, mille teeb eriliseks asjaolu, et kristallid on mõlemast otsast idiomorfsed ehk kvartsile iseloomulike tahkudega. Punase värvuse annab kvartsile kristallides hajutatult esinev hematiit. Lisainfo: [1]
English: Double-terminated quartz crystals from Spain. Red color is due to hematite inclusions. The width of the view is 4 cm. Additional information from the source: [2]
Français : Cristaux bi-terminés de quartz hématoïde ( appelé aussi hyacinthe de Compostelle ) provenant d'Espagne. La couleur rouge est produite par des inclusions d'hématite. Taille réelle de l'image : 4 cm de large.
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