Titan Calcified Light locations
Siren’s Watch #1
Head to one of the rooms in Sloane’s building where you’ll spot one of Savathun’s Eyes.
There’s a small doorway here that leads to an overhang where you can find your first Calcified Light.
Siren’s Watch #2
The next one is inside one of the hubs in the open area.
The Calcified Light is inside a small room with a few Hive milling about.
The Rig #1
The first one is off to your right as you spawn in The Rig.
It’s right behind one of the vents/boxes.
The Rig #2
Next, head to the large building to the right of the tunnel that leads to the Solarium zone. You can find one outside of that building behind one of the crates.
The Rig #3
The last one is inside the building itself.
Next up, let’s take a look at the Calcified Light locations on Io.