Both are formed during the eruption of gas-rich lava. The gas forms bubbles in the lava, which remain in place after it solidifies.
Frothy rocks are caused by violent volcanic eruptions shoot out lava filled with gases. the lava cools quickly, while it is still in the air, and reaps the gases inside. rocks that form this ay are full of holes . two examples of these rocks are pumice and scoria
Pumice is similar to scoria in appearance and formed from very rapidly cooled lava, entrapping expanding gas in the form of air pockets and ruptured bubbles, giving it a vesicular texture.
None of those. Scoria, Pumice and Granite are igneous rocks. Sandstone is sedimentary.
scoria will sink but pumice will float.
Pumice is formed by very rapid cooling of lava that has commonly been ejected under high pressure. This sudden pressure loss causes gasses to come out of solution from the lava making it "frothy". The rapid cooling, traps the gas bubbles in the solidified rock, meaning that pumice is filled with a very large number of void spaces, has a very low density compared to most other rocks and a very high porosity.
Frothy rocks are caused by violent volcanic eruptions shoot out lava filled with gases. the lava cools quickly, while it is still in the air, and reaps the gases inside. rocks that form this ay are full of holes . two examples of these rocks are pumice and scoria
Pumice is similar to scoria in appearance and formed from very rapidly cooled lava, entrapping expanding gas in the form of air pockets and ruptured bubbles, giving it a vesicular texture.
None of those. Scoria, Pumice and Granite are igneous rocks. Sandstone is sedimentary.
Scoria is a frothy form of lava ejected from a volcano as individual pieces.
scoria will sink but pumice will float.
Pumice is formed by very rapid cooling of lava that has commonly been ejected under high pressure. This sudden pressure loss causes gasses to come out of solution from the lava making it "frothy". The rapid cooling, traps the gas bubbles in the solidified rock, meaning that pumice is filled with a very large number of void spaces, has a very low density compared to most other rocks and a very high porosity.
No. Scoria is a basaltic lava ejected as fragments from a volcano, typically with a frothy texture.
yes
No. However there is a similar rock to pumice called scoria, which is sometimes red.
No. Pumice is usually intermediate or felsic. The mafic equivalent of pumice is scoria.
Scoria is the best answer, but under some circumstances, probably pumice
Scoria has thicker vesicle walls than pumice does. This means it has a lower proportion of open space in it, making it less dense than water.