Pearls of Wisdom: Do oozes create pearls?

We know that oysters create pearls by coating irritants in material to ease the discomfort. Could the same be said of oozes?

Typically an ooze dissolves most objects into a form they then devour for sustenance. The remainder is then ejected from their body to be left in their wake as they continue the perpetual search for more food. But what if tiny particulates sometimes remained, unpassed inside the body of the ooze? Might leftovers of very tiny, dust-like size remain and perhaps act as irritants?

While most oozes would conceal these minute treasures within their opaque membrane, the Gelatinous Cube would be an exception. Older cubes might gradually accumulate clouds of encased particles which if observed in sufficient lighting would help reveal their presence.

 Thousands of these little pearls could be carried about until large enough to be expelled by the creature. Following a trail of pearls through a dungeon or cavern might lead adventurers into great danger as they encounter what looks like a reflective star field ahead in the darkness.

Treasure comes in many forms, but the wise remain cautious about the source and oozes would be a dangerous source indeed.