0
nothing
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How is obsidian and coal rock alike?
Obsidian and coal are both rocks and they are formed by lava
What does obsidian and coal have in common?
Both are glassy and both are black
How do you tell the difference between Obsidian rock and Coal Flint rock?
flint has an extremely bright shine
What is the difference between obsidian and coal?
Obsidian has a higher luster(shinier) than coal, coal is organic, and coal is sedimentary and obsidian is igneous
How was the rock obsidian made?
Obsidian is a volcanic or igneous rock. It is formed when lava dries up.
How is obsidian and coal rock alike?
Obsidian and coal are both rocks and they are formed by lava
What does obsidian and coal have in common?
Both are glassy and both are black
How do you tell the difference between Obsidian rock and Coal Flint rock?
flint has an extremely bright shine
What is the difference between obsidian and coal?
Obsidian has a higher luster(shinier) than coal, coal is organic, and coal is sedimentary and obsidian is igneous
What is the common name for obsidian rock?
Volcanic glass, or pumice (vesicular obsidian).
What are common uses for obsidian rock?
its used to make tools and jewlery
Is obsidian rock or gemstone?
Obsidian is an extrusive igneous rock. Volcanic in origin, it is very common in recent lava flows. Obsidian is primarily made of glass. Obsidian is amorphous, lacking any crystal structure found in gemstones. For more details, try asking the question - "What is obsidian"
What is a glassy rock?
Obsidian is a naturally occurring volcanic form of glass.
Is obsidian metamorphic igneous or sedimentary?
Obsidian is an igneous rock.
What does rock group does obsidian belong to?
Obsidian is in the Igneous rock group.
What is a rock made from harden molten rock?
Bituminous or anthracite coal, is ignited to create heat.
How does obsidian rock get its different colors?
how can a blue obsidian rock be blue
