Whole-block amounts of each craftable explosive to destroy one armored l-shaped stairs (2,000 HP, 50% explosion resistance). Raw sulfur is the sulfur in that many explosives.
Siege weapons
Battering Ram×40hits · 50.5/hit
Direct collision damage, so it hits any face equally (no soft/hard side). Per-hit damage is the ram's Explosion + Blunt damage scaled by this block's own protection.
Hits to destroy from the soft (inside) face— the standard raid figure. For guns the hit count equals rounds of the listed ammo. The hard (outside) face takes less. Weapon durability (tools wearing out) isn't factored.
Damage protection
Explosive
50%
blocked
Bullet
99.99%
blocked
Arrow
100%
blocked
Slash
99%
blocked
Blunt
99%
blocked
Stab
98%
blocked
Fire
100%
blocked
Percentage of each damage type this block absorbs. 100% = immune (e.g. arrows and fire do nothing to stone & metal). The remaining fraction still lands, so enough hits of any type will eventually break it. Note: from the soft (inside) face most weapons do roughly double; from the hard (outside) face, less.