Pirate Proximity Mines are explosive devices placed around the North Jungle Hall room in Metroid Prime 3: Corruption, and are found nowhere else in the game. Samus can detonate the mines from a safe distance by shooting them. Samus can activate the mines if she gets within their proximity range, and she will take a large amount of damage if one detonates near her. These mines were also shown to have killed a Reptilicus.
"Pirate Proximity Mine. Explodes when approached. Detonate from a safe distance."