How can I get a Rock Filet, so that I can obtain ore samples?

Hint 1 of 7:

You'll need to find several pieces of a broken Rock Filet, and assemble them.

Hint 2 of 7:

One piece is located in the Center Pit Staging Area.

Hint 3 of 7:

It is located to the left of the green barrels that are blocking the
Abandoned Tunnel.

Hint 4 of 7:

You'll need to look around carefully to find it.

Hint 5 of 7:

The second piece is in the Center Pit Staging Area - Lower Level.

Hint 6 of 7:

Take the elevator near the top left corner of the map for this level.

Hint 7 of 7:

Look around this Lower Level for the second piece of the Rock Filet.