Accelerated Archaeology

During the phase to collect 50 artifacts, simply collect the 3 that have yellow beams of light over them. There are only 3 and they are clear from a long distance.

Anyone can collect them (doesn't have to be the same person) and everyone gets the achievement.

When collected they count as 5, 10 and 15 artifacts for the phase, so don't collect too many of the normal ones or they'll despawn.

To collect them just run over them, you can do this while mounted. You can also collect them while stealthed, avoiding extra trash.

Book artifact is to the left of the cave entrance to the south.
Scroll artifact is in the eastern part of the zone next to the dead Kodo.
Vase artifact is at the northern most part of the outside zone area.

Yellow beams accompany these artifacts.

Yep. Also, to collect the artifacts, simply walk over them. You do not need to click on them or anything.