obsidian rock
The common usage of "lava rock" in the USA refers to a black rock with a number of visible bubbles or air pockets that is formed from cooled lava on the surface. Although lava rock is an igneous rock, it is not the same as the definition for the word igneous, which can also include igneous rocks which have solidified from magma below the surface.
Hornblende diorite is a type of intrusive igneous rock. It is composed primarily of plagioclase feldspar, hornblende, and small amounts of other minerals. It has a medium to coarse-grained texture and is typically gray or greenish in color.
Igneous rock is formed when magma cools and becomes solid.
Extrusive igneous rock such as basalt, rhyolite, pumice, and obsidian.
Bogey
It will look like greenish to blackish color and will be a part of igneous rock.
Basalt, pumice, and obsidian are all extrusive igneous rocks which can appear as black rock.
obsidian rock
it can be black or grey
Intrusive rock normally has visible crystals. Extrusive igneous rock has small crystals. A black extrusive igneous rock with small crystals could be basalt.
The rock inside the Kaaba is a black meteorite, known as the Black Stone (Hajar al-Aswad), which is believed to be of meteoric origin. It is not a sedimentary, igneous, or metamorphic rock.
The answer is pitchstone. it is and igneous rock.
The common usage of "lava rock" in the USA refers to a black rock with a number of visible bubbles or air pockets that is formed from cooled lava on the surface. Although lava rock is an igneous rock, it is not the same as the definition for the word igneous, which can also include igneous rocks which have solidified from magma below the surface.
igneous is black and smooth metamorphic is magnetic and sedimentary is used as cement
Rhyolite is an igneous, black volcanic rock.
Hornblende diorite is a type of intrusive igneous rock. It is composed primarily of plagioclase feldspar, hornblende, and small amounts of other minerals. It has a medium to coarse-grained texture and is typically gray or greenish in color.