Locality: Charles Davis Mine, N. Groton, NH
Specimen Size: 1.3 field of view top photo, 1.0 field of view lower photo
Field Collected: Bob Wilken
Catalog No.: A Bob Wilken specimen and photo
Notes: Laueite is rare at the Charles Davis Mine. Mindat.org does not include it in their species list for the mine (June, 2020).
Locality: Palermo Mine, Groton, NH
Specimen Size: 10 mm field of view & 2 mm FOV close-up
Field Collected: Tom Mortimer
Catalog No.: u1089
Notes: This dense mat of laueite crystals is unusual. A qualitative Kerry Day EDS analysis plot showed Fe >> Mn, ruling out my alternate consideration of hureaulite.
Locality: Palermo Mine, Groton, NH
Specimen Size: 1 mm laueite clusters
Field Collected: From tub of Palermo rocks gifted by Bob Whitmore
Catalog No.: uncertain
Notes:
Locality: Fitzgibbons Mine, Alstead, NH
Specimen Size: 0.96 mm field of view
Field Collected: Bob Wilken
Catalog No.: A Bob Wilken specimen and photo
Notes: A redo of an earlier photo
Locality: Palermo Mine, Groton, NH
Specimen Size: 2.2 mm field of view
Field Collected: Forrest Fogg material
Catalog No.: u2733
Notes: EDS analyses (BC560) indicated a chemistry of Fe1.03Mn0.32Mg0.20P2.0O6.6 . The Fe is more than 3X the Mn, so would seem outside the range for laueite, Mn2+Fe3+2(PO4)2(OH)2 · 8H2O , plus a modest amount of Mg. These do look like they belong to the laueite group. The SEM image reflects the general shape of these crystals.
Jim Nizamoff brought to my attention the ferrolaueite species, Fe2+Fe3+2(PO4)2(OH)2 · 8(H2O). Being an Fe dominant member of the laueite group, ferrolaueite would seem to be a better fit for this specimen, but the total (Fe + Mn) is quite low for my 2 P normalization.
George Adleman attempted a Raman spectrum, (9/24), from this specimen, but was unsuccessful.