Answer:
Glittering points that downward thrust. Sparkling spears that do not rust. What is it?
What has no hands but might knock on your door, and if it does you better open up?
What has a hundred limbs, sometimes leaves, but cannot walk?
What has holes on each side, but can still can hold water?
I'm a long curved fruit that grows in clusters and has soft pulpy flesh and yellow skin when ripe.
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.