History of Qualichor

Qualichor is a Legendary consumable introduced with The Witch Queen. Its in-game description calls it "A strange device of tube, glass, and chitin." It is the material used by the Memory Alembic quest, which is given by Fynch in Savathûn's Throne World.

Acquisition

• Level up Fynch in the Throne World to unlock Deepsight tier 2. New Deepsight nodes then appear in Quagmire, Fluorescent Canal and Miasma, and each can be progressed once per day. Following the trail from a node leads to a mini area, and defeating the Hive boss at its end opens a chest containing Qualichor.
• Defeating Lucent Brood Executioners in the three main areas rewards Qualichor, once per day per account.
• Defeating a group of Lucent Hive Inquisitors also rewards Qualichor. Inquisitors are a random, time-limited event, announced with the message "Lucent Hive Inquisitors in your sector."

Memory Alembic

Collecting the first Qualichor starts the Memory Alembic quest. Collecting 8 Qualichor completes it and rewards Refined Qualichor. Refined Qualichor is needed to open the Executioner's Hoard chest, which grants the Executioner's Hoard triumph.