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Photos recently added to NH species galleries, set #200. |
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Species: SAMARSKITE-Y Locality: Ham-Weeks Mine, Wakefield, NH Specimen Size: 2.4 cm specimen Field Collected: Gene Bearss Catalog No.: NC Notes: Specimen shows a black, sub-metalic, lump on feldspar matrix. Gene had this labeled as ishikawaite. Lacking a confirmed NH ishikawaite motivated an EDS analyses. This indicated the required elements for ishikawaite were present, but the uranium content was far too low. Fred Davis plotted the chemistry from this analysis on an Ercit plot that placed this specimen in the samarskite field, the blue "TJM" dot. [fd] Ercit plots (The Canadian Mineralogist Vol. 43, pp. 1291-1303 2005) utilize "a statistical analysis of composition to generate two vectors - where they point is likely the id of the mineral as shown on a graphical plot. Within the 'samarskite' zone is a small region to the left where ishikawaite is found. The two ishikawaite points are from two analyses from HOM. Your data looks more like samarskite-(Y)." Fred |
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Species: LOLLINGITE Locality: Palermo #1 Mine, Groton, NH Specimen Size: 3.8 cm specimen. Field Collected: per label "ex. Whitmore collection" Catalog No.: TBC Notes: Purchased from Ted Johnson, Yankee Minerals, 8/24/25, $15. Has number 0260. Whitmore & Lawrence's book, The Pegmatite Mines Known as Palermo lists lollingite, but has no illustration. This is a solid massive chunk of lollingite with no matrix. Could jus as well be arsenopyrite, also listed for Palermo. EDS testing planned. Mindat.org (2025) has two photos of arsenopyrite micro-crystals, but no lollingite photos. Assuming this large primary arsenic mineral specimen is from Palermo, it is concerning that realgar is the only secondary arsenic species reported, (no known Palermo examples). Pyrrhotite has a similar appearance, but is slightly magnetic. This specimen is not even slightly magnetic. |
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Species: STAUROLITE Locality: Pond Hill, Lisbon, NH Specimen Size: 2.8 cm specimen Field Collected: Don Swenson Catalog No.: A Don Swenson specimen Notes: A very nice terminated crystal group |
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Species: PHOSPHOSIDERITE Locality: Fletcher Mine, Groton, NH Specimen Size: 1 mm field of view Field Collected: Clayton Ford gifted by Gordon Jackson Catalog No.: u2271 Notes: Vug in rockbridgeite is coated with frosted, squareish, plates of phosphosiderite. The plate in this photo is the largest, but has some growth in front. The SEM image captures these plates well. Leucophosphite is a similar phosphate species occurring as squareish plates, but requires potassium, K. The EDS analyses detected no potassium. The chemistry computed from this analysis is Fe1.23Al0.03P1.03H4.34O6, normalized for 6 O, with 19.28% H2O added from webmineral.com analysis. Ideal phosphosiderite chemistry is FePO4·2H2O . This is the source specimen for the analysis. Similar habit phosphosiderite crystals have been collected (and analyzed) from the nearby Valencia mine and Palermo mine. |
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Species: BAZZITE Locality: N. Sugarloaf Mtn., Bethlehem, NH Specimen Size: 0.2 mm pale blue bazzite crystal Field Collected: Bob Janules. Label gives date as "10/90" Catalog No.: A Bob Janules specimen Notes: This hexagonal bazzite crystal is very tiny, deep within a vug recess. It is remarkable that Bob spotted it. Some clear tabular bertrandite crystals are near by. This is the only N. Sugarloaf bazzite that I have personally viewed. Very rare. A difficult photograph, but I desired to document bazzite at N. Sugarloaf. The photo exagerates the blue color, perhaps due to the LED light source and photoshop post processing. |
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Species: MONAZITE-Ce Locality: Bald Mtn. Ossipee, NH Specimen Size: 8 mm x 10 mm specimen. Monazite-Ce on Aschynite-Ce Field Collected: Bob Janules Catalog No.: A Bob Janules specimen Notes: This is a most remarkable specimen. My photo attempts do not do it justice. The aeschynite crystals are as good as any on mindat. Bob's label indicates the minerals are EDS confirmed. (Requested plots from Bob.) |
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Species: MONAZITE-Ce Locality: Bald Mtn. Ossipee, NH Specimen Size: 3.8 mm field of view. Monazite-Ce on Aschynite-Ce Field Collected: Bob Janules Catalog No.: A Bob Janules specimen Notes: |
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Species: AESCHYNITE-Ce Locality: Bald Mtn. Ossipee, NH Specimen Size: 1.2 mm field of view. Field Collected: Bob Janules Catalog No.: A Bob Janules specimen Notes: |
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Species: AESCHYNITE-Ce Locality: Bald Mtn. Ossipee, NH Specimen Size: 2.6 mm field of view. Field Collected: Bob Janules Catalog No.: A Bob Janules specimen Notes: Another view. |
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Species: MOLYBDENITE Locality: Warren, NH Specimen Size: 6 mm molybdenite crystal in quartz. Field Collected: ex. L.L Hubbard Catalog No.: 1740 Notes: A gift from John Jaszczak, June, 2010. Crystal on 9 cm cabinet specimen. Unfortunately, no more specific locality information beyond "Warren, NH". Specimen contains a lot of black tourmaline. Yellow crust near crystal is likely ferrimolybdite. |