Obsidian and Basalt are both Igneous rocks. They are made from hardened lava from volcanoes.
Obsidian
Three types of igneous rocks are basalt, granite, and obsidian. Basalt is a dark-colored fine-grained rock, granite is a light-colored coarse-grained rock, and obsidian is a natural glass formed from rapidly cooled lava.
Basalt, Rhyolite, Obsidian and Andesite. There's many more but these are the main ones.
Examples of igneous rocks are pumice, obsidian, basalt, and rhyolite.
In reference to the cooling of magma into rock, basalt is formed from rapid cooling.
Obsidian, basalt, andesite, pumice.
Obsidian
Basalt is a dark-colored volcanic rock formed from the rapid cooling of lava, while obsidian is a dark volcanic glass formed from the rapid cooling of lava with high silica content. Basalt has a crystalline structure, while obsidian is amorphous and often exhibits conchoidal fracturing. Basalt is typically denser and more resistant to weathering compared to obsidian.
A few varieties including basalt, obsidian, and scoria.
They are both Igneous. I hope this answered your question.!
Three types of igneous rocks are basalt, granite, and obsidian. Basalt is a dark-colored fine-grained rock, granite is a light-colored coarse-grained rock, and obsidian is a natural glass formed from rapidly cooled lava.
Igneous rock formed at or near the surface is referred to as extrusive igneous rock, such as basalt and obsidian.
Basalt, Andesite, Rhyolite, Obsidian, Pumice, Tuff, Ash (Lava).
Basalt, pumice, and obsidian are all extrusive igneous rocks which can appear as black rock.
obsidian,basalt,granite,pumice,tuff,diorite,gabbro,andesite,ect
Basalt, Rhyolite, Obsidian and Andesite. There's many more but these are the main ones.
A smooth, black rock is likely to be basalt. Basalt is an extrusive igneous rock that is commonly dark in color and has a fine-grained texture, giving it a smooth appearance.