Locality: Littleton, NH
Specimen Size: 0.4 mm orange anatase crystal on quartz
Field Collected: Unknown
Catalog No.: A Bob Janules specimen, ex. Janet Cares
Notes: Rocks and Minerals, (Nov-Dec 1961), had a brief identification inquiry from a Mrs. Nelson Barter, S. Harpswell, ME:
"I am sending a small specimen of quartz crystals found in a road cut in the town of Littleton, NH. They were found on a new road construction. On some of the quartz you will see tiny red crystal shapes. Can you tell me what these red crystals are? Some pieces also have calcite and pyrite crystals on them.
Peter Zodac replied "The small red crystals are spinel."
Spinel crystals will rarely, (if ever?), be found on quartz crystals. Perhaps the small small crystals seen by Peter were in fact anatase, from this locality, or a similar one close-by?
Although spinel has appeared on several past NH mineral species lists, the author [tm] is unaware of any proven New Hampshire example.
In a follow-up note by Neal YEDLIN, 1962 March in World News on Mineral Occurrences (R&M) 37:156 (in regard to Littleton roadcut mentioned by Barter, Nov. 1961, p.588: the "spinels" reported there are really anatase).
Locality: Pike Quarry, Hooksett, NH
Specimen Size: Pair of 0.6 mm anatase crystals on quartz crystals
Field Collected: Tom Mortimer - 2014
Catalog No.: From one of the multi square inch slabs collected
Notes:
Locality: Pike Quarry, Hooksett, NH
Specimen Size: 0.9 mm anatase crystal
Field Collected: Tom Mortimer - 2014
Catalog No.: From one of the multi square inch slabs collected
Notes:
Locality: Pike Quarry, Hooksett, NH
Specimen Size: 0.9 mm anatase crystal
Field Collected: Tom Mortimer - 2014
Catalog No.: From one of the multi square inch slabs collected
Notes:
Locality: Pike Quarry, Hooksett, NH
Specimen Size: 0.5 mm anatase crystal on quartz crystals
Field Collected: Tom Mortimer
Catalog No.: u1751
Notes: A stack of 9 images processed with Helicon Focus.
Locality: Pike Quarry, Hooksett, NH
Specimen Size: 1.5 mm anatase crystal
Field Collected: Bob Wilken - 2014
Catalog No.: A Bob Wilken specimen
Notes: This is a large anatase crystal for the Pike Hooksett quarry.
Locality: Pike Quarry, Hooksett, NH
Specimen Size: 1.0 mm long multi-terminated anatase
Field Collected: Bob Wilken - 2014
Catalog No.: A Bob Wilken specimen
Notes:
Locality: Mine Falls Park, Nashua, NH
Specimen Size: 0.6 mm butterscotch anatase crystal with basel termination
Field Collected: Tom Mortimer - June 1986
Catalog No.: 657
Notes:
Locality: Pike-Wilton Quarry, Wilton, NH
Specimen Size: 0.8 mm field of view
Field Collected: Peter Cristofono - Oct., 2015
Catalog No.: A Peter Cristofono specimen
Notes: From a narrow quartz vein of rusty quartz crystals. Cleaned with Iron Out.
Locality: Audley Quarry, Merrimack, NH
Specimen Size: 0.3 mm crystal (tiny)
Field Collected: Tom Mortimer 5/17 MMNE field trip
Catalog No.: u2048
Notes: Even though I color corrected the photo, the actual crystal is a bit more orange, and not quite as intense.
Photo with Canon T3i, with Nikon Plan 10 microscope objective. 24 image stack.
Locality: Audley Quarry, Merrimack, NH
Specimen Size: 2.5 mm Field of View
Field Collected: Tom Mortimer 2019
Catalog No.: u2242
Notes: There are a few smaller synchysite-like crystals on the specimen. Only one like this I found. I initially identified this as synchysite-Ce, by similarity to the analyzed Mine Falls Park synchysite-Ce. The host rock at MFP is same as at Audley, and only three miles distant.
An october 2019 EDS analysis (BC360) showed no REE's were present. Ca, Si, Al, Mg, Na were present. Nothing matches this very well.