Question

What did you mean by Rumble crystal​

Answer 1

Answer:

to make a deep, heavy, somewhat muffled, continuous sound, as thunder. to move or travel with such a sound: The train rumbled on. Slang. to have or take part in a street fight between or among teenage gangs: Rival gangs rumbled on Saturday afternoon.

Answer 2

Step-by-step explanation:

i heard about tumble crystal but never about tumble crystal

Tumbled stones are small, rounded, brightly polished pieces of rocks and minerals. They are made by placing rough rocks in a machine known as a rock tumbler, which tumbles them until their edges and surfaces are smooth and polished.

but there is also

Yowie Crystal Rumble

which is extremely rare