Answer:
This is the drinkable phase of matter
Its days are numbered.
Without this, H2O would just be 2O
Lovely and round, I shine with pale light, Grown in the darkness, a ladyβs delight.
What can you never get rid of when you lose it?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.