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Photos recently added to NH species galleries, set #148.
Highslide JS
STEWARTITE    Palermo Mine, N. Groton, NH
0.8 mm field of view
Species:           STEWARTITE
Locality:          Palermo Mine, N. Groton, NH
Specimen Size: 0.8 mm field of view
Field Collected: Bob Whitmore - from a tub of Palermo phosphate rocks gifted by Bob.
Catalog No.: u2442
Notes: Habit and termination of these tiny yellow crystals suggests stewartite.
Photo from a stack of 53 images, Nikon Plan 10 objective lens, Ping-pong ball diffuser, one second exposure for each shot! First try with direct LED lighting was sparkle city !
Jim Nizamoff opined that stewartite is the best guess for these tiny crystals, "I have seen similar occurrences in material I have collected or acquired through Bob. There is a chance that these could be something more interesting but as usual the chemistry will possibly determine that."
Highslide JS
REDDINGITE   Palermo Mine, N. Groton, NH
0.7 mm field of view. Pair of reddingite bipyramids.
Species:           REDDINGITE
Locality:          Palermo Mine, N. Groton, NH
Specimen Size: 0.7 mm field of view. Pair of reddingite bipyramids.
Field Collected: Bob Whitmore - from a tub of Palermo phosphate rocks gifted by Bob.
Catalog No.: u1868
Notes: I have this labeled as reddingite. It is similar to the specimen that I had a reddingite analysis, u1886. Reddingite is Mn dominant vs. kryzhanovskite, Fe dominant. This is a redo of an earlier photo... much better than before. These are quite nice for reddingite, but I likely should check.
Highslide JS
CASSITERITE   Smoky Quartz Area, N. Sugarloaf Mtn., Bethlehem, NH
7.5 mm field of view.
Species:           CASSITERITE
Locality:          Smoky Quartz Area, N. Sugarloaf Mtn., Bethlehem, NH
Specimen Size: 7.5 mm field of view.
Field Collected: Bob Janules
Catalog No.: A Bob Janules specimen
Notes: Red danalite on view right edge.
Highslide JS
GORCEXITE  Chandlers Mill Mine, Newport, NH
0.7 mm crystal group


Highslide JS
GORCEXITE  Chandlers Mill Mine, Newport, NH
0.3 mm crystal group
Species:           GORCEXITE
Locality:          Chandlers Mill Mine, Newport, NH
Specimen Size: 0.7 mm crystal group, top photo
Field Collected: Bob Wilken
Catalog No.: A Bob Wilken specimen and photo
Notes: Gorceixite confirmed by EDS analyses. The Chandlers Mill Mine is the second locality that Bob Wilken has found gorceixite.
Highslide JS
FAIRFIELDITE ?  Palermo Mine, N. Groton, NH
8 mm tall specimen
Species:           FAIRFIELDITE ?
Locality:          Palermo Mine, N. Groton, NH
Specimen Size: 8 mm tall specimen
Field Collected: Unknown
Catalog No.: Don Dallaire specimen #4004 and photo.
Notes: [dd] The specimen was from Bob Whitmore's collection (No. 167-16TN). His label says "Fairfieldite, Zone No. 4. It is a spherical fairfieldite as described in his book and is quite asthetic.
Highslide JS
ARROJADITE Group  Palermo #1 Mine, Pod 1, N. Groton, NH
8 mm field of view
Species:           ARROJADITE Group
Locality:          Palermo #1 Mine, Pod 1, N. Groton, NH
Specimen Size: 8 mm field of view
Field Collected: Bob Whitmore, 1975 per label, "***"
Catalog No.: A Ray Meyers collection specimen (purchased)
Notes: Identification per Bob Whitmore original label. [tm] These crystals are very dark for arrojadite.
Whitmore & Lawrence's book The Pegmatite Mines Known as Palermo states that "... arrojadite...was found exclusively at Pod 1 in hydrothermally reworked triphylite mixed with hagendorfite ..."
Highslide JS
ARROJADITE Group  Palermo #1 Mine, Pod 1, N. Groton, NH
2.5 mm crystal
Species:           ARROJADITE Group
Locality:          Palermo #1 Mine, Pod 1, N. Groton, NH
Specimen Size: 2.5 mm crystal
Field Collected: Bob Whitmore
Catalog No.: From a Ray Meyers collection specimen (purchased)
Notes: Identification per Bob Whitmore original label. This crystal broke from miniature specimen when shipped to me.
Highslide JS
RITTMANNITE ?  Chandlers Mill Mine, Newport, NH
1.5 mm field of view
Species:           RITTMANNITE ?
Locality:          Chandlers Mill Mine, Newport, NH
Specimen Size: 1.5 mm field of view
Field Collected: Bob Wilken
Catalog No.: A Bob Wilken specimen and photo
Notes: Rittmannite (whiteite sub-group) suggested by EDS analyses.
[bw] best as I could determine, Rittmannite was the best option...a relatively new member of the whiteite sub group. Reviewing that decision (2021), I come to the conclusion that it can NOT be Rittmannite because Rittmanite is Mn dominant, (...see the results in the attached spectrum). But, everything else fits. An SEM photo on webmineral clearly shows a crystal termination consistent with these little crystals...one that is eosphorite-group-like. Incidentally Webmineral's formula for Rittmannite does not include any Ca whereas Mindat and IMA's do.
There were no other options for the EDS results beyond Rittmannite and Kingsmountite. Kingsmountite looks more like a gordonite-type xl. So, I decided to check other whiteite subgroup species. Nothing fits there. Several require Mg which this does not show. It seems logical that this should fit in this subgroup somewhere but none of the members quite fit.
Rittmannite chemistry is: {(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 8H2O Web mineral gives an empirical formula as (combining O, omitting H): Mn2FeAl2P4O26 . Analysis chemistry: Mn1.78Fe1.96Al3.35P4O21.4 , normalized for 4 P.
Highslide JS
ROSCHERITE Group  Chandlers Mill Mine, Newport, NH
0.8 mm roscherite crystal "fan"


Highslide JS
ROSCHERITE Group  Chandlers Mill Mine, Newport, NH
1.9 mm field of view
Species:           ROSCHERITE Group
Locality:          Chandlers Mill Mine, Newport, NH
Specimen Size: Top photo: 0.8 mm roscherite crystal "fan"
Field Collected: Bob Wilken
Catalog No.: A Bob Wilken specimen & photo
Notes: Identification by Bob Wilken.
Highslide JS
WARDITE  Chandlers Mill Mine, Newport, NH
0.5 mm wardite crystal
Species:           WARDITE
Locality:          Chandlers Mill Mine, Newport, NH
Specimen Size: 0.5 mm wardite crystal
Field Collected: Bob Wilken
Catalog No.: A Bob Wilken specimen & photo
Notes:
Highslide JS
BROCHANTITE  Mascot Mine, Gorham, NH
1.4 mm field of view


Highslide JS
BROCHANTITE  Mascot Mine, Gorham, NH
0.7 mm field of view
Species:           BROCHANTITE
Locality:          Mascot Mine, Gorham, NH
Specimen Size: 1.4 mm field of view with 0.7 mm close-up
Field Collected: Bob Wilken
Catalog No.: A Bob Wilken specimen & photo
Notes: