ff7 riddles

[musenji]

Ack! Sorry, no, it's not the ice crystal.

Edit: hint: but it IS an item.

Edit 2: hint 2: line 7 refers to an expression involving a penny. hence the copper..

hint 3: "hopper" refers to a garbage hopper, and it's symbolic, not literal.

hint 4: the answer is two words. stanza 1 is about one of the words (and the item's "nature"), and stanza 2 is about the other word (what the item does).