Mineralogy Database

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14 samples matching your criteria

Sample n° 12891 : white and yellow crystals (1-3 cm)
Minerals: TOPAZ QUARTZ     Year: 1972     Country: Nigeria

Sample n° 12892 : black tabular crystals in quartz
Minerals: RIEBECKITE     Year: 1972     Country: Nigeria

Sample n° 12893 : cassiterite crystals in quartz
Minerals: CASSITERITE     Year: 1972     Country: Nigeria

Sample n° 12894 : shiny black crystals in vein quartz
Minerals: SPHALERITE     Year: 1972     Country: Nigeria

Sample n° 12895 : black fibro-radial material
Minerals: PYROLUSITE     Year: 1972     Country: Nigeria

Sample n° 12896 : altered black fibrous material
Minerals: VIVIANITE     Year: 1972     Country: Nigeria

Sample n° 12897 : black metallic mass in granite
Minerals: MOLYBDENITE     Year:     Country: Nigeria

Sample n° 12899 : granular, disseminated in vein
Minerals: CASSITERITE     Year: 1972     Country: Nigeria

Sample n° 12900 : brown twinned crystal (5 cm)
Minerals: SIDERITE     Year: 1972     Country: Nigeria

Sample n° 12901 : reworked material
Minerals: CHALCEDONY (quartz) QUARTZ     Year: 1972     Country: Nigeria

Sample n° 12902 : green crystals (2 cm) in granite, var. amazonite
Minerals: MICROCLINE     Year: 1972     Country: Nigeria

Sample n° 12903 : large altered plate-shaped crystal (30 cm)
Minerals: MUSCOVITE     Year: 1972     Country: Nigeria

Sample n° 12904 : group of tabular crystals (5 cm)
Minerals: BARITE     Year: 1972     Country: Nigeria

Sample n° 14338 : bluish prismatic crystal (3 cm)
Minerals: TOPAZ     Year: 1985     Country: Nigeria