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Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), under digidal microscope, Háje, Příbram District, Czech Republic (50606801311).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), under digidal microscope, Háje, Příbram District, Czech Republic (50606083298).jpg - Ser Amantio di Nicolao

IMGP2021109 microphoto (50606059963).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), under digidal microscope, Háje, Příbram District, Czech Republic (50606824056).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), under digidal microscope, Háje, Příbram District, Czech Republic (50606082968).jpg - Ser Amantio di Nicolao

IMGP2021105 microphoto (50606082773).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), under digidal microscope, Háje, Příbram District, Czech Republic (50606823596).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), under digidal microscope, Háje, Příbram District, Czech Republic (50606823246).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), under digidal microscope, Háje, Příbram District, Czech Republic (50606944367).jpg - Ser Amantio di Nicolao

IMGP2021100 (50606820021).jpg - Ser Amantio di Nicolao

IMGP2021099 (50606076448).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), Háje, Příbram District, Czech Republic (50606936762).jpg - Ser Amantio di Nicolao

IMGP2021101 (50606823166).jpg - Ser Amantio di Nicolao

IMGP2021097 (50606072883).jpg - Ser Amantio di Nicolao

IMGP2021096 (50606932997).jpg - Ser Amantio di Nicolao

IMGP2021095 (50606930717).jpg - Ser Amantio di Nicolao

IMGP2021093 (50606063308).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), Háje, Příbram District, Czech Republic (50606066218).jpg - Ser Amantio di Nicolao

IMGP2021092 (50606925937).jpg - Ser Amantio di Nicolao

IMGP2021090 (50606803511).jpg - Ser Amantio di Nicolao

Sphalerite ZnS, quartz SiO2 - Uranium Mine No. 21 (Shaft No. 21), Háje, Příbram District, Czech Republic (50606061618).jpg - Ser Amantio di Nicolao

IMGP2021088 (50606802761).jpg - Ser Amantio di Nicolao

IMGP2021091 (50606804021).jpg - Ser Amantio di Nicolao

IMGP2021087 (50606923687).jpg - Ser Amantio di Nicolao

IMGP2021086 (50606801931).jpg - Ser Amantio di Nicolao