Rare and Uncommon New Hampshire Mineral Species               Return to front page.           Click on image for larger view
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HYPERSTHENE    Aggregate Industries Quarry, Raymond, NH
TBD
Species:           HYPERSTHENE  
Confidence:     2
Chemistry:     (Mg,Fe)SiO3
Locality:          Aggregate Industries Quarry, Raymond, NH
Specimen Size: TBD
Field Collected (owner): Peter Cristofono
Analysis: Notes: [PC] "Hypersthene? from monzonite. It looks to be a pyroxene based on cleavage, and if so apparently hypersthene according to Freedman (1950); However, I don't think it can be visually distinguished with certainty from augite."
[TM] Phillip Morrill did report hypersthene from New Hampshire.
Highslide JS
KAHLERITE    Parker Mtn. Mine, Center Strafford, NH
1 mm field of view. Tiny rectangular, paper-thin, plates of kahlerite.


Highslide JS
KAHLERITE    Parker Mtn. Mine, Center Strafford, NH
0.5 mm field of view. Tiny rectangular, paper-thin, plates of kahlerite.

Species:           KAHLERITE   
Confidence:     5
Chemistry:      Fe(UO2)2(AsO4)2 · 10-12H2O
Locality:          Parker Mtn. Mine, Center Strafford, NH
Specimen Size: 1 mm field of view, top photo. Tiny rectangular, paper-thin, plates of kahlerite.
Catalog No.: u2028
Field Collected: Bob Janules
Owner: Tom Mortimer
Analysis: Kahlerite confirmed by EDS analysis.
Notes: Only two Parker Mtn. kahlerite specimens are known. The other is in the collection of Dana Morong. Altering lollingite is present with scorodite on this specimen and is likely the source of the arsenic.
Highslide JS
KAHLERITE    Parker Mtn. Mine, Center Strafford, NH
2 mm field of view. Kahlerite (coated?) in lollingite vug

Species:           KAHLERITE   
Locality:          Parker Mtn. Mine, Center Strafford, NH
Specimen Size: 2 mm field of view. Kahlerite (coated?) in lollingite vug
Field Collected - Owner: Dana Morong
Catalog No.: A Dana Morong collection specimen
Notes:
Highslide JS
METASWITZERITE    Parker Mtn. Mine, Center Strafford, NH
8 mm field of view. Scaly golden-bronze colored metaswitzerite on triphylite


Highslide JS
METASWITZERITE    Parker Mtn. Mine, Center Strafford, NH
4 cm specimen with bronze-colored metaswitzerite on gray-blue triphylite


Highslide JS
METASWITZERITE    Parker Mtn. Mine, Center Strafford, NH
Gene Bearss specimen label
Species:           METASWITZERITE  
Confidence:     5
Chemistry:      Mn+23(PO4)2 · 4H2O
Locality:          Parker Mtn. Mine, Center Strafford, NH
Specimen Size: 8 mm field of view (top photo). Scaly golden-bronze colored metaswitzerite on triphylite
Field Collected: Gene Bearss - 1979
Owner: Tom Mortimer
Catalog No.: u1786
Analysis: A carbon tape mounted grain EDS analysis (BC36) showed only P, Mn, O and a bit of Fe.
Notes: The Bearss label with the specimen suggests metaswitzerite for this mineral. The chemistry indicated by the EDS spectrum is consistant with metaswitzerite with a bit of Fe substitution for some Mn. Mindat photos of metaswitzerite from The Foote Lithium Mine in North Carolina compare favorably with this specimen.
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NIZAMOFFITE    Palermo Mine, N. Groton, NH
3 mm field of view


Species:           NIZAMOFFITE  
Confidence:     4
Chemistry:      Mn+2Zn2(PO4)2(H2O2)4
Locality:          Palermo Mine, N. Groton, NH
Specimen Size: 3 mm field of view
Field Collected - Owner: Bob Wilken
Analysis: The nizamoffite identification is suggested by EDS analysis 9/14/16.
Notes: The sodium response (not present in the described nizamoffite chemistry) is likely a miss-identification by the EDS element assignment software. Zn and Na have strong peaks separated by only 29 eV.
[tm] I question the EDS software assignment of sodium within the Zn-Na peak. Zn has two peaks in this area, one at 1.012 KeV and one at 1.035 KeV. Sodium has a strong peak at 1.041 KeV. The resolution of the instrument is 125 eV (0.125 KeV).
Highslide JS
NIZAMOFFITE    Palermo Mine, N. Groton, NH
0.5 mm nizamoffite crystal
Species:           NIZAMOFFITE  
Locality:          Palermo Mine, N. Groton, NH
Specimen Size: 0.5 mm nizamoffite crystal
Field Collected - Owner: Bob Wilken
Notes:
Highslide JS
OVERITE group   Palermo Mine, N. Groton, NH
4 mm field of view
Species:           OVERITE group  
Confidence:     3
Chemistry:      (Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2O
Locality:          Palermo Mine, N. Groton, NH
Specimen Size: 4 mm field of view
Field Collected: Forrest Fogg
Owner: Tom Mortimer
Catalog No.: u1475
Analysis: Qualitative EDS analysis suggests this is likely a member of the overite mineral group, perhaps manganosegelerite
Notes: From material collected by Forrest Fogg in the 1970's, forwarded to me by Gordon Jackson. The color is about right based on the mindat photo for this species. No overite group minerals have been reported from Palermo. A quantitative EDS with Atomic %'s and good light element resolution would be helpful on this specimen.
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