Locality: Palermo Mine, N. Groton, NH
Specimen Size: 0.16 mm high x 0.03 mm wide black siderite crystals.
Field Collected: From a tub of Palermo phosphate rocks gifted by Bob Whitmore.
Catalog No.: u2475
Notes: Very tiny !
Locality: Palermo Mine, Groton, NH
Specimen Size: 1.5 mm field of view.
Field Collected: From a tub of Palermo rocks gifted by Bob Whitmore, 2009
Catalog No.: NC
Notes: Spray of scalenohedron habit siderite crystals with rockbridgeite balls.
Locality: Un-named lead (Pb) mine, Bristol, NH
Specimen Size: 5 mm field of view
Field Collected: Tom Mortimer
Catalog No.: u2563
Notes: Slow bubble formation was observed when a grain of this mineral was pushed into a drop of muriatic acid. This slow reaction indicates a carbonate (likely siderite) but not calcite or aragonite.
This crystal group is only 0.5 mm thick.
Locality: Un-named lead (Pb) mine, Bristol, NH
Specimen Size: 4 mm field of view
Field Collected: Tom Mortimer
Catalog No.: u2563
Notes: Cluster of rhombic siderite crystals.
Locality: Gilman Valley Notch, Ossipee, NH
Specimen Size: 7.3 cm tall specimen
Field Collected: Bob Janules
Catalog No.:A Bob Janules specimen & photo
Notes: [tm] Perhaps a pseudomorph after pyrite.
Locality: Palermo Mine, Groton, NH
Specimen Size: 13 mm field of view
Field Collected: "Mine-run" from Bob Whitmore
Catalog No.: TBC
Notes: Siderite with rockbridgeite. Siderite is common at Palermo, but has many different habits.
Locality: Palermo Mine, Groton, NH
Specimen Size: 1.1 mm crystal, vertical.
Field Collected: From unsorted box of small chunks gifted by Bob Whitmore
Catalog No.: u2673
Notes: Matrix is granular quartz. Unusual isolated siderite crystal. Jim Nizamoff concurred that this is most likely siderite.