Galenite crystals. Galenite (galena) is a lead sulphide and is the most important ore of lead. It occurs as a mass of dense,dark grey or glossy crystals and is one of the most abundant and widely distributed sulphide minerals. Galenite is a semiconductor and was used in early wireless communication systems as the crystal in crystal radio sets. Sample measures 30mm high and was found in Freiberg,Germany | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 3478 px × 5047 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |