What exactly do we know as of 5.3 about the sound that was heard before Amaurot fell?

[Iscah]

Sorry to disappoint, but a mining leve from Crystarium tells us these are just giant extra pure salt crystals XD I got excited about those too, but then I got to hack at them later and was deeply disappointed.

On the one hand, yeah. The levequest declares them salt crystals and that's super disappointing.

On the other... salt crystals? In a presumably-freshwater lake?

We were also harvesting "driftwood" from ruined buildings at one point if I remember right, so the descriptions are at least slightly dubious. I wonder if the levequest people actually talk to the lore people...

[Kesey]

On the one hand, yeah. The levequest declares them salt crystals and that's super disappointing.

On the other... salt crystals? In a presumably-freshwater lake?

We were also harvesting "driftwood" from ruined buildings at one point if I remember right, so the descriptions are at least slightly dubious. I wonder if the levequest people actually talk to the lore people...

No this is probably a real world thing that made it into the final fantasy game. A great example is the great lakes, which today are fresh water lakes, but underneath them is a large deposit of salt from pre-history when the United States or we should say the earth plates that would house the United States in the future were under the ocean.

[AmemeAmeklin]

On the one hand, yeah. The levequest declares them salt crystals and that's super disappointing.

On the other... salt crystals? In a presumably-freshwater lake?

We were also harvesting "driftwood" from ruined buildings at one point if I remember right, so the descriptions are at least slightly dubious. I wonder if the levequest people actually talk to the lore people...

If the salt isn't floating around in the water actively then it'd still be freshwater, I think. The water in the immediate vicinity might be brackish if the salt dissolves.

I can't comment on the driftwood label being assigned to house ruins, but I'm fairly sure both the names of the items gathered and the lore in the description are the product of the lore/localization team. If it turns into a problem with the MSQ, the locations of that levequest's nodes may find themselves mysteriously relocated in the future...