James St. John:
Auriferous sulfidic hydrothermal quartz vein (gold ore) (Agnesa Vein, central zone of the Stiavnica Volcano, Central Slovakia Volcanic Field, Middle Miocene, 13-15 Ma; ~10 meters above the XIV Level, Rozalia Mine, Stvnicke Vrchy Mountains, Slovakia) 1
James St. John:
Auriferous sulfidic hydrothermal quartz vein (gold ore) (Agnesa Vein, central zone of the Stiavnica Volcano, Central Slovakia Volcanic Field, Middle Miocene, 13-15 Ma; ~10 meters above the XIV Level, Rozalia Mine, Stvnicke Vrchy Mountains, Slovakia) 2
James St. John:
Auriferous sulfidic hydrothermal quartz vein (gold ore) (Agnesa Vein, central zone of the Stiavnica Volcano, Central Slovakia Volcanic Field, Middle Miocene, 13-15 Ma; ~10 meters above the XIV Level, Rozalia Mine, Stvnicke Vrchy Mountains, Slovakia) 3
James St. John:
Epipliopithecus vindobonensis (fossil primate) (Middle Miocene; Slovakia) 1
James St. John:
Epipliopithecus vindobonensis (fossil primate) (Middle Miocene; Slovakia) 2
James St. John:
Stibnite (Nová Alexander Adit, Kolársky vrch Deposit, Little Carpathian Mountains, Slovakia) 1
James St. John:
Stibnite (Nová Alexander Adit, Kolársky vrch Deposit, Little Carpathian Mountains, Slovakia) 2
James St. John:
Stibnite (Nová Alexander Adit, Kolársky vrch Deposit, Little Carpathian Mountains, Slovakia) 3