James St. John:
Talc schist 1
James St. John:
Talc schist 2
James St. John:
Talc schist 3
James St. John:
Talc schist 4
James St. John:
Talc Schist 9
James St. John:
Talc Schist 10
James St. John:
Talc Schist 11
James St. John:
Talc Schist 12
James St. John:
Talc Schist 13
James St. John:
Talc Schist 14
James St. John:
Talc Schist 15
James St. John:
Talc Schist 16
James St. John:
Talc schist (Balmat, New York State, USA) 17
James St. John:
Talc schist (Balmat, New York State, USA) 18