Which glassy, dark volcanic rock was used by some to make edged tools and arrowheads?
Volcanic rock volcanic rock they are selling. The sub-family of rocks that form from volcanic lava are called igneous volcanic rocks (to differentiate them from igneous rocks that form from magma below the surface, called igneous plutonic rocks). The lavas of different volcanoes, when cooled and hardened, differ much in their appearance and composition. If a rhyolite lava-stream cools quickly, it can quickly freeze into a black glassy substance called obsidian. When filled with bubbles of gas, the same lava may form the spongy appearing pumice. Allowed to cool slowly, it forms a light-colored, uniformly solid rock called rhyolite. The lavas, having
Edged and bladed weapons Edged and bladed weapons Bladed and edged weapons are types of melee weapons used throughout history for combat, hunting and in ceremonies. Bladed weapons include swords, knives and, in more recent times, bayonets. Edged weapons are used to hack and slash but, depending on the weapon, to also thrust and stab. Not all swords, knives and bayonets have blades, but points – intended for thrusting rather than slashing. Other dedicated edged weapons include battleaxes and poleaxes. Many edged tools, especially agricultural tools such as axes and scythes, have been used as improvised weapons by peasantry, militia, or irregular forces –