James St. John:
Gold on quartz (Roata Mine, Cavnic, Romania)
James St. John:
Gold (Transylvania, Romania)
James St. John:
Ursus spelaeus (cave bear) (Pleistocene, 42-100 ka; cave in Brasov area, Carpathian Mountains, Romania)
James St. John:
Ursus spelaeus (cave bear) (Pleistocene, 42-100 ka; cave in Brasov area, Carpathian Mountains, Romania)
James St. John:
Galena with siderite coating (Turt Mine, Satu Mare, Romania) 1
James St. John:
Galena with siderite coating (Turt Mine, Satu Mare, Romania) 2
James St. John:
Sphalerite (Herja Mine, Baia Mare, Romania)
James St. John:
Chalcopyrite on sphalerite (Bolut Mine, Cavnic, Romania)
James St. John:
Chalcopyrite on sphalerite (Romania)
James St. John:
Chalcopyrite-sphalerite-pyrite-quartz (Boldut Mine, Cavnic, Romania)
James St. John:
Stibnite (Baia Sprie, Maramures, Romania) 1
James St. John:
Stibnite-calcite (Breiner Mine, Baiut, Romania)
James St. John:
Stibnite (Herja Mine, Baia Mare, Romania) 1
James St. John:
Stibnite (Herja Mine, Baia Mare, Romania) 2
James St. John:
Sylvanite (Romania)
James St. John:
Sylvanite (Transylvania, Romania)
James St. John:
Dolomite after calcite (Boldut Mine, Cavnic, Maramures County, Romania) 1
James St. John:
Dolomite after calcite (Boldut Mine, Cavnic, Maramures County, Romania) 2
James St. John:
Quartz with chlorite (Transylvania, Romania)
James St. John:
Quartz with included chlorite (Brad, Transylvania, Romania) 1
James St. John:
Quartz with included chlorite (Brad, Transylvania, Romania) 2
James St. John:
Quartz with included chlorite (Brad, Transylvania, Romania) 3
James St. John:
Stibnite (Baia Sprie, Maramures, Romania) 2
James St. John:
Stibnite (Baia Sprie, Maramures, Romania) 3
James St. John:
Stibnite (Baia Sprie, Maramures, Romania) 4
James St. John:
Stibnite (Baia Sprie, Maramures, Romania) 5
James St. John:
Rhodochrosite-stilbite (Cavnik, Romania)
James St. John:
Ordinary chondrite (Mezö-Madaras Meteorite)