Locality: Johnson Rd. locality, Bow, NH
Specimen Size: 5 mm field of view
Field Collected: Jim Cahoon - 2016
Catalog No.: u2193
Notes: I had this visually identified as dolomite. A June 2018 polished grain EDS analysis (BC290) gave a very good match for dolomite. Very pure dolomite, no iron. Carbon is not included in the report due to carbon coating of the polished grain epoxy block.
Locality: Pike Hooksett Quarry, Hooksett, NH
Specimen Size: 3 cm specimen with 10 mm & 1.5 mm zoom views
Field Collected: Tom Mortimer Oct 2019 MMNE field trip
Catalog No.: 2123
Notes: Micro pyrite crystals are also present. Only the micro-mineral collector can appreciate these.
Locality: Rt. 12 west-side rip-rap, Charlestown, NH
Specimen Size: 2.5 cm specimen with 6 mm close-up
Field Collected: Tom Mortimer - August, 2026
Catalog No.: 2798
Notes: Discoid dolomite crystals with granular aragonite. Dolomite confirmed by Raman. Aragonite is suggested by very vigorous fizz in muriatic acid, but might be dimorph calcite. Specimen cleaned in Super-Iron-Out. Dolomite plates to several inches are available in this steep, hundred yard, rip-rap slope. Convenient car pull-off at south end.