There are 50 Calcified Fragments to be found in Destiny: The Taken King.

This one can be collected during patrol.

This can only be obtained during The Skyburners Event.

Fragment 37[edit]

Initiate the Skyburners Event. Follow the instructions of it to get the Skyburner Deployment Codes

Calcified Fragment 37

With the codes in hand, head to the Mausoleum. Approach the Cabal ship from the left. You will see a window you can jump into. Use the Skyburner Deployment Codes to trigger another event.

Skyburners Event

This will have you complete another event. This one is timed and likely involves eliminating a target.

Skyburners Event

Defeat the target and return to the same room where you trigger the event. There is a door in that room. Use the Skyburners Security Pass to access the room beyond. Use the Security Pass again to open the Chest there and collect the Calcified Fragment.

Calcified Fragment 37

Book of Sadness Entry[edit]

Look at you!

Already you are grown, my daughter, already you are a wizard. Have I been away so long? Now you are Ir Anûk, and Savathûn cackles and rages at your brilliance. You have written eleven axioms describing the ascendant places, our throne world. You have announced that you will kill one of these axioms, as Akka would kill the truth, and in mantling Akka you will become a God, as I am.

If you try it I may kill you, or I may applaud. Well done. I brought you this bitter acid for your celebrations.

And you, Ir Halak, you are a wizard too, as is the way of twins. I have been with Xivu Arath, who complains that you have made a song, and sung it in her throne world, and killed everyone who listened, quite irrevocably. Will we have songs instead of swords and boomers?

What have you made for me? It is a tooth shaped like death! I will keep it in my mouth. What have you written for me? It is the course of the Nicha Thought-ship! I will track it down.

I made you by cutting one larvae in half. It would not die. Each half grew into one of you. My sword is named Willbreaker, but it never broke you.