Even so, diamonds in peridotite rarely survive the journey on the floor.[66] A different frequent source that does preserve diamonds intact is eclogite, a metamorphic rock that ordinarily forms from basalt being an oceanic plate plunges to the mantle in a subduction zone.[20] Only an incredibly modest fraction from the https://open.spotify.com/episode/0OYrk3tapYBdf3BnfTJNMg