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Richmond, Berkshire Co., Massachusetts, USA
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Latitude: 42°22'23"N
Longitude: 73°22'5"W
Originally part of Stockbridge, the town of Richmond was incorporated in 1765.

The mine localities consist of several small iron mines including the Carr, Cone #1, Cone #2, and Klondike on the south side of Cone Hill. In 1829, a furnace was constructed and it was the last operating blast furnace in Massachusetts.

Richmond is the type locality for gibbsite, named by John Torrey (1796-1873) in 1822, for Col. George Gibbs (1777-1834).

Hobbs (1907), who places it in the "Richmond group" rather than the Salisbury District of goethite iron mines, did, however, provide a description of the Cone mine, the only one still active at that time:

The only mine now in operation in the Richmond district is the “Cone,” located near the town of West Stockbridge. A section of the older mine of this name is given in Fig. 21.

The foot wall is here of dolomite, which dips to the southeast¬ward at an angle of about 35o and has a strike of N. 30° E. To the southeast of the mine on the steep wall is found a decomposed variety of schist which is characterized by a soapy feel. The workings are now underground, and the incline follows down some distance above the foot wall in a mass of yellow ochre. A layer of this material generally covers the foot wall and is utilized by the miners for following its general direction, though the workings are seldom carried down to the foot wall because it has been found too irregular to follow. The hanging wall is described as a “blue marl.” This appears to be largely, if not wholly, of glacial origin, and from examination of the newer openings, hardpan. On the authority of Mr. Burget, the superintendent of the company, dolomite likewise forms the foot wall for the other now abandoned mines of the Richmond district. At the new opening of the “Cone” mine, a continuous body of ore has been penetrated to a depth of thirty feet or more without reaching its bottom. The ore is generally loose and admixed with considerable ochre.

Mineral List

Gibbsite (TL)
var: Selenite

'Richmondite (of Kenngott)'

6 entries listed. 3 valid minerals. 1 type locality (valid mineral).

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Hobbs, William Herbert. (1907), The Iron Ores of the Salisbury District of Connecticut, New York and Massachusetts. Economic Geology: 2: 153-181.

Elwell, Wilbur J. (1936), A Mineralogical Trip Through New England. Rocks and Minerals: 11(3): 36-7.

Plante, Alan R. (1992), Western Massachusetts Mineral Localities.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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