Goethite gallery

GOETHITE Gallery Return to Goethite page. Click on image for larger view

GOETHITE Long Mtn., Odel, NH 5 cm specimen.	Species: GOETHITE Locality: Long Mtn., Odel, NH Specimen Size: 5 cm specimen. Field Collected: ex Don Swenson, (collection date noted as Aug. 1992) Catalog No.: 1829 Notes: Interesting specimen from an undocumented locality, although Long Mtn. is noted under Stark, NH by Phillip Morrill for amethyst.
GOETHITE Mine Ledge, Surry, NH 2.2 cm field of view	Species: GOETHITE Locality: Mine Ledge, Surry, NH Specimen Size: 2.2 cm field of view Field Collected: Tom Mortimer Catalog No.: Notes: Eleven image stack with Helicon Focus.
GOETHITE Knox Mtn. Ossipee, NH 7 mm field of view. Reddish goethite crystal on right, smoky quartz crystal on left.	Species: GOETHITE Locality: Knox Mtn. Ossipee, NH Specimen Size: 7 mm field of view. Reddish goethite crystal on right, smoky quartz crystal on left. Field Collected: Tom Mortimer Catalog No.: u252 Notes: When I collected this, I thought this might be a danalite crystal, or perhaps monazite based on the color and the miarolitic cavity environment. The shape suggest garnet, but I have never seen garnet in a NH miarolitic cavity. An EDS analysis showed only Fe (of elements > sodium), so goethite/limonite. This is likely a pseudomorph after pyrite.
GOETHITE Stoddard Mine, Westmoreland, NH 9 mm field of view. Dark brown, resinous, goethite in quartz with green malachite	Species: GOETHITE Locality: Stoddard Mine, Westmoreland, NH Specimen Size: 9 mm field of view. Dark brown, resinous, goethite in quartz with green malachite Field Collected: Tom Mortimer Catalog No.: TBC Notes: Goethite confirmed by EDS analysis (BC136). For some time I had wondered what this brown resinous mineral was. The analysis and surrounding malachite indicate a former chalcopyrite mineral altered to goethite.
GOETHITE pseudo after Pyrite Ore Hill Rd. Circle, Sugar Hill, NH 2.2 cm goethite pseudomorph after pyrite	Species: GOETHITE pseudo after Pyrite Locality: Ore Hill Rd. Circle, Sugar Hill, NH Specimen Size: 2.2 cm goethite pseudomorph after pyrite Field Collected: Don Swenson 5/09 Catalog No.: A Don Swenson specimen Notes:
GOETHITE Mine Ledge, Surry, NH 4 mm field of view. Furry goethite balls on quartz.	Species: GOETHITE Locality: Mine Ledge, Surry, NH Specimen Size: 4 mm field of view. Furry goethite balls on quartz. Field Collected: Tom Mortimer Catalog No.: u1502 Notes:
GOETHITE Mine Ledge, Surry, NH 1.5 mm goethite crystal	Species: GOETHITE Locality: Mine Ledge, Surry, NH Specimen Size: 1.5 mm goethite crystal Field Collected: Tom Mortimer Catalog No.: u778 Notes: Goethite blade crystals like this are rare.
GOETHITE Johnson Rd., Bow, NH 2.5 cm specimen.	Species: GOETHITE Locality: Johnson Rd., Bow, NH Specimen Size: 2.5 cm specimen. Field Collected: 2016 Catalog No.: u2165 Notes: A January, 2018 carbon tape EDS analysis showed mostly an iron oxide (goethite) with a bit of zinc and sulfur. I had considered this deep orange mineral might be minium, the lead-oxide mineral, due to all the decomposing galena nearby.
GOETHITE balls in quartz Mine Ledge, Surry, NH 2.8 mm field of view. Yellow goethite balls on first growth goethite coated quartz crystal overgrown by clear second growth quartz crystal.	Species: GOETHITE balls in quartz Locality: Mine Ledge, Surry, NH Specimen Size: 2.8 mm field of view. Yellow goethite balls on first growth goethite coated quartz crystal overgrown by clear second growth quartz crystal. Field Collected: Tom Mortimer Catalog No.: u2411 Notes:
GOETHITE Palermo Mine, N. Groton, NH 2.5 mm field of view	Species: GOETHITE Locality: Palermo Mine, N. Groton, NH Specimen Size: 2.5 mm field of view Field Collected: Bob Whitmore - from a tub of Palermo phosphate rocks gifted by Bob. Catalog No.: u2460 Notes: Visual ID. A goethite "worm."
GOETHITE ? Palermo Mine, N. Groton, NH 1.1 mm field of view	Species: GOETHITE ? Locality: Palermo Mine, N. Groton, NH Specimen Size: 1.1 mm field of view Field Collected: Bob Whitmore - from a tub of Palermo phosphate rocks gifted by Bob. Catalog No.: TBC Notes: Visual ID. The interior of these nodules is very granular, as seen in the top broken section.