Refined Qualichor

[Vinnie's Biscwit]

So I've collected enough of this Qualichor stuff to get it refined and been to Finch as instructed. He's told me what the stuff does but provided no clue about how or where to use it. Anybody know what to do with it?
Incidentally before I found enough of this stuff I happened upon a chest in Florescent Canal, high up on a ledge in a building near the lost sector which I couldn't open. Said I needed Refined Qualichor, now I actually have the stuff the chest is no longer there and with Finch giving zero clues I'm stuck.

[EckyThump]

In the patrol areas, you might sometimes get a notification about 'Lucent Inquisitors' - glowing enemies will spawn in the area. Kill the group, and a Lightbearer will show up. Another group will appear somewhere else, followed by a third. When the third group is killed, three Lightbearers will spawn together.

When these three are killed, they spawn a chest which produces Qualichor, same as the chests you get from hunting the Executioners, IGNORE THIS ONE NOW you will lose your Refined Qualichor, it will get replaced by a standard one if you open it. Instead look around for another chest - in Florescent Canals it is up near the roof of the big building, on a ledge, that's the one you just mentioned. In Quagmire, a fallen tree will appear, letting you cross to a ledge near a wall. In Miasma the chest is down against the base of the hill where you fight the Lightbearers. These chests only appear once the Lightbearer trio is killed so won't be present at other times, you must have arrived just after some were killed. The refined Qualichor will let you open this chest. The reward is not worth it, just a standard loot drop and a triumph, but I suspect this all may be a required step though for part of the Exotic Glaive quests that will be available post-raid.

[Vinnie's Biscwit]

Thank you Ecky, very helpful mate