These gorgeous chips are 4-4.5 cm across their longest dimension and are a mix of quartz, chalcopyrite, and petlandite (a type of nickel ore). They were mined from Coleman Mine in Sudbury, Ontario. They make for botha lovely mineral specimen for collectors and a powerful connection to Ontario lands.
You are not guaranteed a specific piece from the photo.
DO NOT EXPOSE TO WATER. BE AWARE OF NICKEL CONTENT.