oceanic trenches

Sedimentary rocks are formed from particles of sand, shells, pebbles, and other fragments of material. Generally, sedimentary rock is fairly soft and may break apart or crumble easily.

Each rock type is altered when it is forced out of its equilibrium conditions. For example, an igneous rock such as basalt may break down and dissolve when exposed to the atmosphere, or melt as it is subducted under a continent.

Can Ghasts destroy Obsidian? So, Ghasts cannot destroy Obsidian.

Both Nether portals and End Towers are renewable sources of obsidian as they can be mined using diamond pickaxes traded from Villager blacksmiths or enchanted with Mending.

In Java Edition, journeyman-level armorer villagers have a 40% chance of offering to buy a lava bucket for one emerald.

Obsidian is now used to craft ender chests and end crystals. Obsidian now generates naturally in the End as obsidian platforms, obsidian pillars and some parts of end ships in end cities. Obsidian now generates in woodland mansions.

Silk touch now works. It can acquire these previously non-obtainable blocks: grass, stone, coal ore, redstone ore, lapis lazuli ore, diamond ore, bookshelves, glass, ice. Mushroom blocks now drop when mined with Silk Touch. Ender chests now drop 8 obsidian unless mined with Silk Touch.

Obsidian can only be found naturally near lava beds that are below sea level. It takes 250 seconds to break an obsidian block by hand, and 21.85-125 seconds to break it with a pickaxe weaker than diamond or netherite, although neither will yield any obsidian.

obsidian is the strongest block that you can get and be able to place in survival.

250 seconds

End Stone