If you see a small plane flying low over your community in the next few months, it just might be the U.S. Geological Survey doing some long-overdue mapping. 

Specific to Connecticut, this aerial project has been scheduled to include the mapping of veins of pyrrhotite. 

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It’s the mineral experts believe prompted hundreds of concrete basements in Connecticut and Massachusetts to crack -- usually costing about $200,000 to repair. 

Ten years ago, NBC Connecticut Investigates broke the story about the defective concrete.

Geologists from Connecticut and Massachusetts teamed up on this project, because western Massachusetts has the crumbling basement issue as well. 

The team said it wants to see where all the pyrrhotite

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