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Robin's Hill copperas mine, Chelmsford, Middlesex County, Massachusetts, USAi
Regional Level Types
Robin's Hill copperas mineMine
ChelmsfordTown
Middlesex CountyCounty
MassachusettsState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
42° 34' 50'' North , 71° 21' 39'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Chelmsford33,925 (2017)2.2km
Carlisle4,799 (2017)5.8km
Westford21,587 (2017)6.3km
Lowell110,699 (2017)6.9km
Billerica39,904 (2017)7.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Nashoba Valley Mineralogical SocietyWestford, Massachusetts6km
Boston Mineral Club, Inc.Boston, Massachusetts35km
North Shore Rock & Mineral Club of MassachusettsSouth Hamilton, Massachusetts40km
Mindat Locality ID:
215626
Long-form identifier:
mindat:1:2:215626:5
GUID (UUID V4):
1a0b3001-cfa6-4f4b-a896-6b15f3366bdd


According to the 1917 "History of Chelmsford Massachusetts" (Rev. Wilson Waters at p659) the Copperas Mine "was located on the southerly slope of Robin's hill, and is said to have been worked to a depth of over fifty feet. Very little can be learned about it, as the mine probably has not been worked for over one hundred years, and it is now filled with stones and other refuse matter. It is said to have yielded a dark, rotten rock of greenish hue, from which copperas was obtained, which was locally used in the tanning and manufacture of leather. There were eight or ten tanning vats by the small brook on Bartlett Street, in Chelmsford, a larger number in Westford, and several vats in Acton, which created a demand for the product of this mine. The material taken out, if we may judge of it from the name given to the mine, was probably partially decomposed or weathered iron pyrites, which by oxidation and other natural processes produced copperas. By simple artificial imitative processes, this mineral would yield the ferrous sulphate commercially known as green vitriol or copperas."

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O

List of minerals for each chemical element

HHydrogen
H MelanteriteFe2+(H2O)6SO4 · H2O
OOxygen
O MelanteriteFe2+(H2O)6SO4 · H2O
SSulfur
S MelanteriteFe2+(H2O)6SO4 · H2O
FeIron
Fe MelanteriteFe2+(H2O)6SO4 · H2O

Other Regions, Features and Areas containing this locality


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

 
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