Since lava is typically around 2200 F, Platinum and Titanium would both be fine since they both have melting temperatures above 3000 F. Also, some ceramics could probably withstand these temperatures.

When magma flows or erupts onto Earth’s surface, it is called lava. Like solid rock, magma is a mixture of minerals. It also contains small amounts of dissolved gases such as water vapor, carbon dioxide, and sulfur. The high temperatures and pressure under Earth’s crust keep magma in its fluid state.

Flux melting occurs when water or carbon dioxide are added to rock. These compounds cause the rock to melt at lower temperatures. This creates magma in places where it originally maintained a solid structure. Much like heat transfer, flux melting also occurs around subduction zones.

Scientists often discover new species in deep undersea exploration, like the Crown Jellyfish, which was first spotted 5,000 feet (1500 M) underwater. In 2009, Oregon State University researchers found shrimp, crab, limpets and barnacles living around a highly active volcano near Guam.

To date, there’s only one species that has been called ‘biologically immortal’: the jellyfish Turritopsis dohrnii. These small, transparent animals hang out in oceans around the world and can turn back time by reverting to an earlier stage of their life cycle.

– A team of scientists from Oregon has collected microbes from ice within a lava tube in the Cascade Mountains and found that they thrive in cold, Mars-like conditions. The microbes tolerate temperatures near freezing and low levels of oxygen, and they can grow in the absence of organic food.

Bacteria can live on and around a volcano, but not inside/in the molten lava. The absence of water inside the volcano makes it impossible for bacteria to grow and reproduce.

When scientists started studying the murky orange waters around the Solomon Islands’ submerged Kavachi volcano, the last thing they expected to see was schooling sharks. Kavachi is active, and eruptions are common. …

You would burn your hand pretty badly if you touched it yourself, but you wouldn’t die, especially if your hand was nice and wet. I tried throwing a banana peel on the lava, and nothing really happened. The heat conductivity of lava is really low and thus surface temperature especially with a bit of wind is too.

You wouldn’t be able to. Lava is WAY more dense, you would need a ton of power to try and submerge your arm. Leidenfrost effect. The water in you will boil pretty quick, creating a air barrier between the lava your skin, protecting you, if you do submerge it.