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Chamosite from
Aggregate Industries Quarry (Bayer-Mingolla Quarry; Trimount Quarry), Ashland, Middlesex Co., Massachusetts, USA

Locality type:Quarry
Classification
Species:Chamosite
Formula:(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Colour:green
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:SEM-EDS
Analysis Reference:SEM-EDS Kerry Day 2008 (P. Cristofono collection)
References
References:P Cristofono collection
Associated Minerals Based on Photo Data:
Ferro-hornblende1 photo of Chamosite associated with Ferro-hornblende at this locality.
Pyrite1 photo of Chamosite associated with Pyrite at this locality.
Magnetite1 photo of Chamosite associated with Magnetite at this locality.
Epidote1 photo of Chamosite associated with Epidote at this locality.
Pericline1 photo of Chamosite associated with Pericline at this locality.
Data
Mineral Data:Click here to view Chamosite data
Locality Data:Click here to view Aggregate Industries Quarry (Bayer-Mingolla Quarry; Trimount Quarry), Ashland, Middlesex Co., Massachusetts, USA
Nearest other occurrences of Chamosite
26.5km (16.5 miles) West Roxbury Crushed Stone Quarry (West Roxbury Trap Rock Co. Quarry; Grove St. Quarry), West Roxbury, Boston, Suffolk Co., Massachusetts, USA
47.0km (29.2 miles) Rollstone Hill Quarries, Fitchburg, Worcester Co., Massachusetts, USA
57.0km (35.4 miles) Pelham, Hillsborough Co., New Hampshire, USA
63.9km (39.7 miles) Comolli Granite Quarry, Milford, Hillsborough Co., New Hampshire, USA
66.4km (41.3 miles) Young Quarry, Milford, Hillsborough Co., New Hampshire, USA
76.4km (47.5 miles) Mount Tom road cut, Exeter, Washington Co., Rhode Island, USA
78.3km (48.6 miles) Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA
 
Mineral and/or Locality  
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