James St. John:
Anorthoclase feldspar with iridescent hematite inclusions (Potanikha Quarry, Kasli, Ural Mountains, Russia) 1
James St. John:
Anorthoclase feldspar with iridescent hematite inclusions (Potanikha Quarry, Kasli, Ural Mountains, Russia) 2
James St. John:
Anorthoclase feldspar with iridescent hematite inclusions (Potanikha Quarry, Kasli, Ural Mountains, Russia) 3
James St. John:
Anorthoclase feldspar with iridescent hematite inclusions (Potanikha Quarry, Kasli, Ural Mountains, Russia) 4
James St. John:
Anorthoclase feldspar with iridescent hematite inclusions (Potanikha Quarry, Kasli, Ural Mountains, Russia) 5
James St. John:
Anorthoclase feldspar with iridescent hematite inclusions (Potanikha Quarry, Kasli, Ural Mountains, Russia) 6
James St. John:
Anorthoclase feldspar with iridescent hematite inclusions (Potanikha Quarry, Kasli, Ural Mountains, Russia) 7
James St. John:
Anorthoclase feldspar with iridescent hematite inclusions (Potanikha Quarry, Kasli, Ural Mountains, Russia) 8
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 1
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 2
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 3
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 4
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 5
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 6
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 7
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 8
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 9
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 10
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 11
James St. John:
Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 12
James St. John:
Sunstone 1
James St. John:
Sunstone 2
James St. John:
Sunstone 3
James St. John:
Sunstone 4
James St. John:
Sunstone 5
James St. John:
Sunstone 6
James St. John:
Sunstone 7
James St. John:
Sunstone 8