[enanthate (OP)]

Hi,

Found this piece at an alum shale dig site in downtown Oslo. I noticed these tiny nuggets of metal in the shale. Any idea what kind of metal it is?


1.jpg (257.5 kB . 1210x908 - viewed 3589 times)


2.jpg (283.14 kB . 1210x908 - viewed 3806 times)

[Bass]

Pyrite, or Fool's Gold. The cubic form is the real give-a-way. Black shales like this are commonly deposited in anoxic conditions, making iron sulfides more likely to form than iron oxides.