New-York, Dec. 21, 1818.
Dear Sir,
It is desirable that some mode should be adopted by which the public may become acquainted with all the New American Localities of Minerals, as they are discovered from time to time. With deference I would suggest, that in each number of your Scientific Journal, new localities might be recorded in alphabetical order, for present information and future reference.
The following localities, which have come under my observation, and which are probably not noticed in any work, are at your service.
1. Agate. Rolled mass: occurred near Powles Hook, New-Jersey.
2. Apatite. Truncated crystals of one inch, and amorphous; occurs in granite, chiefly in the felspar. Corlaer's Hook, vicinity of New-York.
3. Brown Mammillary Hematite, covering quartz crystals. Perkiomen lead-mine. Montgomery county, Pennsylvania.
4. Carbonate of Magnesia. Structure earthy. Apparently a pure carbonate of magnesia. In mica slate, and granite; chiefly in the quartz. Roxborough, Philadelphia county.
5. Common Jasper. Traversed by veins of semi-opal. Small detached masses, frequently waterworn. Rhinebeck, Dutchess county, New-York.
6. Compact Malachite. Perkiomen lead-mine.