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Photos recently added to NH species galleries, set #85. |
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Species: HUREAULITE Locality: Palermo Mine, N. Groton, NH Specimen Size: 2.0 mm hureaulite cluster Field Collected: Bob Wilken - 2004 Catalog No.: A Bob Wilken specimen Notes: |
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Species: HUREAULITE Locality: Palermo Mine, N. Groton, NH Specimen Size: The longer of the two xls left is 6.0 mm long. Field Collected: Bob Wilken - 2004 Catalog No.: A Bob Wilken specimen Notes: |
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Species: HUREAULITE Locality: Palermo Mine, N. Groton, NH Specimen Size: 4 mm crystal (parallel group) Field Collected: Bob Wilken - 2004 Catalog No.: A Bob Wilken specimen Notes: |
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Species: MAGNETITE in Quartz Locality: Gale River, Franconia, NH Specimen Size: 1.4 cm specimen Field Collected: Joey Vaughan Catalog No.: 2023 Notes: The first EDS analysis suggested fayalite, the iron end member of the olivine group. Microscope examination of the specimen showed both dark glassy grains and clear glassy grains. Both the dark and clear grains were magnetic. A follow-up EDS analysis of the dark grains showed only Fe and O present, indicating magnetite. An analysis of a clear grain showed it to be just quartz. At highest magnification, the "clear" grains were observed to have tiny black inclusions, very likely magnetite. These magnetite inclusions gave the clear grains their magnetic attraction. The first analysis suggesting fayalite must have included an area of both magnetite and quartz. An acknowledgement to Peter Cristofono who noticed the tiny black inclusions in the clear grains. |
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Species: WARDITE Locality: Palermo Mine, N. Groton, NH Specimen Size: 4.4 cm field of view Field Collected: Bob Whitmore Catalog No.: A Don Dallaire collection specimen Notes: These are very large wardites for the Palermo Mine. |
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Species: HEMATITE Locality: Hurricane Mtn., Conway, NH Specimen Size: 2.8 cm - full specimen Field Collected: Don Swenson Catalog No.: Notes: When I first saw these lustrous black crystals I thought they might be cassiterite. However an EDS analysis showed them to be hematite. The small bit of silica is likely an impurity in the sample. |
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Species: GRAFTONITE Locality: Fletcher Mine, N. Groton, NH Specimen Size: 4.5 cm specimen Field Collected: Clayton Ford Catalog No.: 2021 Notes: This is the first Fletcher Mine graftonite I have seen. |
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Species: TRIPHYLITE Locality: G.F. Smith Mine, Newport, NH Specimen Size: 4.5 cm specimen with dark blue massive triphylite and feldspar Field Collected: Tom Mortimer Catalog No.: 2025 Notes: A voucher specimen for tyriphylite at the G. F. Smith Mine. Note: The G. F. Smith Mine is to the north of Chandlers Mill Rd., between Chandlers Mill Rd. and the Sugar River. The more famous Chandlers Mill Mine is on the south side of Chandlers Mill road. |
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Species: FLUORITE Locality: Rt. 101 - Rt. 101A Interchange, Amherst, NH Specimen Size: 1 mm field of view Field Collected: Matt Butler Catalog No.: A Matt Butler specimen Notes: |
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Species: FLUORITE Locality: Rt. 101 - Rt. 101A Interchange, Amherst, NH Specimen Size: 1.5 mm field of view Field Collected: Matt Butler Catalog No.: A Matt Butler specimen Notes: |
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Species: MICROCLINE Locality: Hurricane Mtn., Conway, NH Specimen Size: 3.5 cm specimen Field Collected: Tom Mortimer Catalog No.: 2026 Notes: These microcline crystals have a manganese (pyrolucite ?) or iron-oxide coating, demonstrating that external color can sometimes be a poor aid to species identification. The matrix is quartz, feldspar and arfvedsonite. |