What do you mean uncommon component of breaking down cobblestone.
There is a 20% chance to get 1-3 lead chemical from soul sand and you need 16 to get 1 lead dust.
You can get a steady supply of lead by making a cobblestone generator and feeding it into a chemical decomposer. You'll also get a lot of other useful stuff that way.
yup, so i want to just post a pretty shit bug here.. just got the end hard drive, popped it in, walked up to the tunnel of love. Saw a spider on the other side, around the ring; thought nothing of it as it jumps towards me and into the portal. Popped on the protective foot wear and lept. I died on spawn in the end cause the spider hit me on the other side and caused me to die by falling. I lost EVERYTHING i had... 100s of levels of enchanting and junk. the sides should be a no spawn zone...
They're called torches. They're amazing for stopping spawns. Also, try a glider for a nice safe landing.
XP grate + drum is a good way to store your xp when venturing somewhere dangerous too.