'Volcanic glass' is the common name, for it is glassy, and comes from a volcano. Of use in anthropology, for such an excellent cutting tool has good trade value.
Granite is a coarse grained igneous rock without Pyroxene.
Obsidian is an igneous rock.So the answer is YES.
Obsidian is a volcanic glass which forms when a high silica melt solidifies quickly after eruption. Organic and chemical are terms used to classify sedimentary rock. Obsidian is an igneous rock type.
Glassy rocks are rocks that have cooled and solidified quickly, without forming crystals. This rapid cooling prevents mineral crystals from growing, resulting in a smooth and glass-like texture. Obsidian and pumice are examples of glassy rocks.
obsidian
Obsidian is an igneous rock.
Obsidian is in the Igneous rock group.
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Volcanic rock.
No. Obsidian is just one of many types of volcanic rock.
Obsidian is an extrusive felsic igneous rock.
The common name for obsidian rock is volcanic glass.
obsidian obsidian
obsidian
Obsidian is in the Igneous rock group.
Obsidian is an igneous rock.So the answer is YES.
It is an igneous rock