What is obsidian?
Q: What is obsidian?
A: Obsidian is a natural volcanic glass and a type of igneous rock.
Q: How is obsidian formed?
A: Obsidian is formed when lava high in silica cools rapidly and solidifies quickly.
Q: What is the unique feature of obsidian blade edges?
A: Obsidian blade edges can reach almost molecular thinness due to the lack of crystal structure.
Q: How were obsidian blades used in the past?
A: Obsidian blades were used as arrowheads in the past.
Q: What is the modern-day use of obsidian blades?
A: Obsidian blades may be used as surgical scalpel blades today.
Q: What is the main component of obsidian lava?
A: The main component of obsidian lava is silica, or SiO2.
Q: Is there a crystal structure in obsidian?
A: No, there is no crystal structure in obsidian.
