Locality: Palermo Mine, N. Groton, NH
Specimen Size: 1.5 mm Foggite rosette showing individual crystal plates. Second view, 10 mm, rosette with broken rosette to right. Foggite balls are on bed of siderite crystals.
Field Collected: Walter Lane
Catalog No.: TBC
Notes: Foggite specimens that resolve individual crystal plates frquently have a brown oxide coating. This specimen is free from this coating. The foggite ID is a visual one, but also concurred by another experienced Palermo collector.
Locality: Palermo #1 Mine, Pod 3, N. Groton, NH
Specimen Size: 1.5 mm cluster of platy foggite crystals, two views
Field Collected: Bob Whitmore
Catalog No.: A Bob Whitmore specimen
Notes:
Locality: Palermo Mine, Pod 3, N. Groton, NH
Specimen Size: 4 mm Foggite sphere on quartz crystals.
Field Collected: Bob Whitmore #954 - 1974
Catalog No.: A Don Swenson specimen
Notes: Goyazite also appears to be present on this specimen. Identification presumed by Bob Whitmore or Forrest Fogg.
Locality: Palermo #1 Mine, N. Groton, NH
Specimen Size: 2.5 mm Foggite ball
Field Collected: Walter Lane 1995-96, Cat. #2394
Catalog No.: A Gene Bearss collection specimen
Notes: The square terminations of the individual foggite crystals are clearly evident here. This is a classic foggite crystal spheroid. Apatite also forms spheroids at the Palermo Mine and may be confused with foggite, but the apatite balls lack the square plate terminations.
Stack of 20 images processed with Helicon Focus.
Locality: Palermo Mine, N. Groton, NH
Specimen Size: 0.25 mm crystal cluster - VERY tiny!
Field Collected: Unknown
Catalog No.: A Arnaldo Brunetti collection specimen
Notes: I made three tries at this. Very tiny, 0.25 mm cluster. Stacked square-ish plates. Visual ID is foggite. The terminations are square with the vertical, but appear rhombic in this somewhat tilted view. If foggite, then a respectable photo of distinct crystals. Stack of 50 images, SL3 with Canon 55-250 mm lens plus Nikon Plan 10 objective.
Locality: Palermo #1 Mine, Pod 3, N. Groton, NH
Specimen Size: 0.8 mm field of view
Field Collected: ex. Bob Whitmore #1767
Catalog No.: u1441
Notes: As of April 2020, this is the best photo known to me [tm] of a Palermo foggite.
Locality: Palermo #1 Mine, Pod 3, N. Groton, NH
Specimen Size: 1.0 mm field of view
Field Collected: ex. Bob Whitmore #1767
Catalog No.: u1441
Notes: Foggite crystals coated with some oxide (or as fellow collector Bob Wilken calls it: "schmutz") which gives added contrast.
Locality: Palermo #1 Mine, Pod 3, N. Groton, NH
Specimen Size: 1.5 mm field of view
Field Collected: ex. Bob Whitmore #1767
Catalog No.: u1441
Notes: Little contrast in the jumble of foggite crystals.
Locality: Palermo Mine, N. Groton, NH
Specimen Size: 0.8 mm ball diameter
Field Collected: Bob Whitmore - from a tub of Palermo phosphate rocks gifted by Bob.
Catalog No.: u2437
Notes: I'm going with a visual foggite ID on this, based on the ball structure of foliated plates. However, the plate tops are not as square as on ideal foggite. Messelite is a second choice. Matrix is black, oxidized, siderite.
Locality: Palermo Mine, Groton, NH
Specimen Size: 1.1 mm Foggite ball top two photos.
Field Collected: Forrest Fogg
Catalog No.: TBC
Notes: Bob Wilken gave me a small box of micros, perhaps acquired via Gordon Jackson, labeled "Foggite Palermo #1 N. Groton, F. Fogg 1972-76". The box has about a dozen inch-sized chunks with small quartz crystal vugs and cream colored balls. With one exception these balls are quite smooth. (On one ball I could see squareish foggite plates.) Some vugs had clusters of childrenite. and most chunks had blue zones of scorzalite.I considered apatite for the smooth balls, so checked with EDS. EDS analyses , BC474 result indicated a Ca, Al phosphate (consistent with foggite), but the Ca content was about 3X what foggite would have. I did two probings (weight % oxide) and both gave nearly same result. I do see some tiny squareish plates at highest magnification on ball surface, last two photos. The APFU calculates a Ca:Al:P ratio of about 3:1:1. It should be 1:1:1 for foggite.