From The LNR Book of Knowledge

Start: Old box (“Inspect”), [-1506,190], Southern Jedi Ruins (Blackguard section inside long building), Mustafar

Part 1: Crystal splinters - Combat: Spawns 2 Trinity Assassins (CL83 Boss Jedi); Walk around [-1500,235] until you get the popup message that says the splinters are humming; Search the area for some “Crystal splinters” [-1490,253] (/target crystal); Radial menu: “Gather up splinters”

Fragments of the Past, Part II

Start: Continuation of “Fragments of the Past” quest

Part 1: Reunited? - You have to find 4 Shard splinters around Mustafar (in any order). In order to do this you must first get a “humming” popup message and then a “Splinters awake” task, where you must search the nearby area for a splinter. This process is repeated for all 4 splinters. One is found on the ground, for the others you must defeat enemies to get them.

• Shard splinter 1: Humming message [2176,3068]; Find the splinter on the ground at [2135,3161]; Radial menu: “Gather up splinters”
• Shard splinter 2: Humming message [-1447,412]; Combat: Defeat Xos (CL88 Elite Jedi) [-1407,340] for splinter
• Shard splinter 3: Humming message [1020,955]; Combat: Defeat Magma Horn (CL82 Elite Tulrus) [998,1012] for splinter
• Shard splinter 4: Humming message [3344,2880]; Combat: Defeat Phantoms Bandits (CL69) in the area around the escape pod until you get the splinter

Part 2: Splinters awake - Need to complete this part for each of the Shard splinters

Fragments of the Past, Part III

Rewards: Wild Force Shard (Defensive Burst)

Part 1: Assembling a crystal - Enter the Old Research Facility at [2109,3104], an instanced dungeon with plenty of CL80+ droids and creatures in it (see “Maps” links); Proceed through the dungeon as follows (use “/target” to find objects):

Main Floor:

• Power Access Terminal (“Activate Power”) to open the door to the 1B Floor

1B Floor:

• Storage Chest (“Open”) for the Access Key Card
• Door Terminal (“Use Access Card”)
• Journal Screen (“Inspect Closely”) for the Security Code
• Door Terminal (“Use Security Code”)
• Security Station (“Override Security”) to open the doors on the 2B Floor

2B Floor:

• Photon Fusion Welder (“Start fusion process”)

Part 2: Process under way - Wait 10 seconds for the fusion process to finish

Part 3: Finished - Access the Photon Fusion Welder again (“Retrieve crystal”) to get the reward