Latitude: 42°56'2"N
Longitude: 71°34'55"W
The Joppa Hill prospects are in Amherst, close to the Amherst-Bedford line. A
vesuvianite crystal from this locality was illustrated in the 2nd edition of Dana's System of Mineralogy (1844). Mineralization occurs in bedrock exposures of contact metamorphosed limestone and in a quartz vein, both in Amherst. Boulders extending across the town line into Bedford also produce specimens. This mineral list includes occurrences in both towns.
The locality was first discovered by a Dr. Spaulding of Amherst who noticed some unusual rocks in stone walls of the area. The source of these stones was discovered in a ravine on the land of Betsey Stevens. Dr. Spaulding (and a Mr. Peabody) guided geologist Charles Jackson to the locality. Jackson described the rock as being exactly like the "limestone" of
Phippsburg, Maine. (Jackson, 1844)
Mineral List
30 entries listed. 22 valid minerals.
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References
Dana, James D. (1844): A System of Mineralogy, 2nd edition.
Jackson, Charles T. (1844): Final Report on The Geology and Mineralogy of New Hampshire.
Silliman, Benjamin (1844): Review of Dana's Mineralogy (American Journal of Science and Arts 46:371, April 1844.)
Phillips, William; Allan, Robert; and Alger, Frances (1844): An Elementary Treatise on Mineralogy, 5th ed. (Boston: William Tickner & Co.), p. 29.
Hitchcock, Charles H. (1877): Geology of New Hampshire, Vol.II.
Hawes, George W. (1878): Geology of New Hampshire, Vol.III, Part IV.
"World News on Mineral Occurrences". (1951) Rocks and Minerals 26:148.
Meyers, T. R. & Stewart, G. W. (1956): The Geology of New Hampshire.
Morrill, Philip (1960): New Hampshire Mines & Mineral Localities, 2nd ed.
Babcock, M. (1965): Joppa Hill and Old Granite Quarry (Rocks & Minerals 40:26-27).
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