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The official name of the state is the Commonwealth of Massachusetts. The state is divided into 14 counties. The counties, in turn, are subdivided into 50 cities and 301 towns. There are no unincorporated areas in the state.
Mineral ListMineral list contains entries from the region specified including sub-localities
271 valid minerals. 7 (TL) - type locality of valid minerals.
Rock Types RecordedEntries shown in red are rocks recorded for this region.
Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!
Rock list contains entries from the region specified including sub-localities
- Igneous rock
- Sedimentary rock and sediment
- Metamorphic rock and metasediment
Localities in this Region
- Barnstable Co.
- Berkshire Co.
- Bristol Co.
- Dukes Co.
- Essex Co.
- Franklin Co.
- Hampden Co.
- Hampshire Co.
- Middlesex Co.
- Nantucket Co.
- Norfolk Co.
- Plymouth Co.
- Suffolk Co.
- Worcester Co.
- New Braintree
- West Brookfield
- Middlesex Co.
The above list 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.