James St. John: Calcite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 1
James St. John: Calcite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 2
James St. John: Calcite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 3
James St. John: Celestite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 1
James St. John: Celestite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 2
James St. John: Celestite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 3
James St. John: Fluorite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 1
James St. John: Fluorite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 2
James St. John: Fluorite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 3
James St. John: Fluorite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 4
James St. John: Pyrite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 1
James St. John: Pyrite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 2
James St. John: Sulfur (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 1
James St. John: Sulfur (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 2
James St. John: Sphalerite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 1
James St. John: Sphalerite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 2
James St. John: Sphalerite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 3
James St. John: Strontianite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 1
James St. John: Strontianite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 2
James St. John: Strontianite (Stoneco Inc. Maumee Quarry, Lucas County, Ohio, USA) 3