James St. John:
Opal (Opal Butte, Morrow County, Oregon, USA) 5
James St. John:
Opal (Opal Butte, Morrow County, Oregon, USA) 4
James St. John:
Opal (Opal Butte, Morrow County, Oregon, USA) 3
James St. John:
Opal (Opal Butte, Morrow County, Oregon, USA) 2
James St. John:
Dolomitic concretion (Ohio Shale, Upper Devonian; Groveport, Ohio, USA)
James St. John:
Mt. Hagafell-Mt. Stóra Skógfell area eruption, Iceland (2:10 AM-on, 19 April 2024)
James St. John:
Native silver in matrix (Imiter Silver Deposit, near-latest Neoproterozoic, ~550 Ma; Imiter Mine, Anti-Atlas Mountains, Morocco) 4
James St. John:
Native silver in matrix (Imiter Silver Deposit, near-latest Neoproterozoic, ~550 Ma; Imiter Mine, Anti-Atlas Mountains, Morocco) 3
James St. John:
Native silver in matrix (Imiter Silver Deposit, near-latest Neoproterozoic, ~550 Ma; Imiter Mine, Anti-Atlas Mountains, Morocco) 2
James St. John:
Native silver in matrix (Imiter Silver Deposit, near-latest Neoproterozoic, ~550 Ma; Imiter Mine, Anti-Atlas Mountains, Morocco) 1
James St. John:
Star rose quartz (Mozambique) 2
James St. John:
Star rose quartz (Mozambique) 1
James St. John:
Hyalite opal fluorescing 3
James St. John:
Hyalite opal fluorescing 2
James St. John:
Hyalite opal 3
James St. John:
Hyalite opal 2
James St. John:
Ruby rod (manmade) fluorescing 2
James St. John:
Ruby rod (manmade) fluorescing 1
James St. John:
Ruby rod (manmade) 2
James St. John:
Ruby rod (manmade) 1
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 17
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 16
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 15
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 14
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 13
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 12
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 11
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 10
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 9
James St. John:
Scoria (Holocene, 1200s A.D.; crater of Stampar Volcano, Reykjanes Peninsula, Iceland) 8
