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Photos recently added to NH species galleries, set #56. |
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Species: MITRIDATITE Locality: Palermo #1 Mine, Pod 3, N. Groton, NH Specimen Size: 4 cm specimen with zones of massive, olive-green, mitridatite Field Collected: Forrest Fogg - from flat of unlabeled Fogg specimens from Gordon Jackson Catalog No.: TBC Notes: Mitridatite is much more common at Palermo as a dusty, olive-green, coating on other phosphate and carbonate minerals. A qualitative EDS analysis of this specimen implied a Ca predominant Fe phosphate that (chemically) suggested the massive form of xanthoxenite, Ca4Fe3+2(PO4)4(OH)2 · 3H2O, although this specimen would be visually excessively green for this species. However, when the substantially lower EDS detector response at 6.5 KeV vs. 4 KeV was factored in, Fe was likely greater than Ca in my sample. A follow-up XRD analysis gave an excellent match for mitridatite, Ca2Fe3+3(PO4)3O2 · 3H2O . I am uncertain as to how common this massive form of mitridatite is at Palermo. I had not noticed it previously. Perhaps it is just over-looked. The hardness measured about 3 with a commercial hardness point set. |
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Species: WULFENITE Locality: Mineral Hill, Wakefield, NH Specimen Size: 0.4 mm wulfenite crystal Field Collected: Gene Bearss - 2013 Catalog No.: u1439 Notes: |
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Species: ILMENITE Locality: Lockes Hill, Gilford, NH Specimen Size: 1.2 mm ilmenite crystal Field Collected: Tom Mortimer - 2005 Catalog No.: u634 Notes: |
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Species: HEMATITE Locality: Streamside Drive (residential construction site), Hooksett, NH Specimen Size: 6 mm field of view. Gray, platey, hematite crystals on rhyolite-like matrix. Field Collected: Tom Mortimer - 2005 Catalog No.: u672 Notes: From a celler hole excavation. |
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Species: ARSENOPYRITE Locality: Palermo Mine, N. Groton, NH Specimen Size: 2 mm arsenopyrite crystal in siderite. Two views, different lighting angles. A partial second crystal projects from the lower portion of the one lying flat. Field Collected: Walter Lane material Catalog No.: TBC Notes: Arsenopyrite is listed for the Palermo Mine. The diamond crystal shape with horizontal striations is diagnostic for arsenopyrite. This is the first Palermo arsenopyrite crystal I have seen. |
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Species: VIVIANITE Locality: Palermo Mine, N. Groton, NH Specimen Size: 6 mm flat prismatic vivianite crystal Field Collected: From crate of Palermo rocks given by Bob Whitmore Catalog No.: TBC Notes: At 6 mm, this is quite large for a Plaermo vivianite crystal. |
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Species: ALMANDINE Locality: Ore Hill Garnet Locale, Sugar Hill, NH Specimen Size: 1.3 cm almandine garnet crystal Field Collected: Tom Mortimer Catalog No.: 1386 Notes: |
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Species: VESUVIANITE Locality: Joppa Hill Locale, Amherst, NH Specimen Size: 2 cm specimen Field Collected: Tom Mortimer Catalog No.: 816 Notes: |
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Species: SCHORL Locality: South Uncanoonuc Mtn., Goffstown, NH Specimen Size: 2.4 cm specimen Field Collected: Tom Mortimer Catalog No.: 901 Notes: |
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Species: ZOISITE Locality: Crushed Stone Quarry, Westmoreland, NH, NH Specimen Size: 4.5 cm specimen of feldspar crystals with tan prismatic zoisite center. Field Collected: Tom Mortimer Catalog No.: 1543 Notes: See specimen 1452 for EDS analysis of zoisite for this occurrence. I was only able to extract a couple of zoisite specimens from this find. These are, unfortunately, quite busted up. Zoisite specimens are rare in NH. |