Why is obsidian sharp?
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Why is obsidian sharp?

Obsidian is sharp because it is made of pure volcanic glass. Volcanic glass is a mixture of minerals that becomes extremely hot during the eruption, and it contains no chemicals. When molten lava cools quickly, its molecules must fall apart to form crystals and the resulting glass is very sharp. This process produces shards a…

Is there fake obsidian?
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Is there fake obsidian?

There are many misconceptions about obsidian, but what is known for sure is that it cannot be created. This volcanic glass can only be formed when a volcano erupts and lava meets water, causing the liquid rock to cool and form rough, black shards. Is there fake obsidian? If you’re wondering if you can create…

What obsidian is used for?
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What obsidian is used for?

Obsidian can be used for many things. It is primarily used in pyrotechnics, blades and gemstone jewellery. As a material, it is primarily used for manufacturing tools such as projectile points and blades for knives. It can also be rolled into thin sheets to create the ancient Egyptian practice of mummification. Though obsidian has been…

Is black obsidian rare?
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Is black obsidian rare?

Black obsidian is one of the rarest types of obsidian, according to the Smithsonian. It is named for the dark black color it has when it first breaks from a volcanic vent. There are a few different causes for this color, including oxidization and groundwater that washes over black lava flows into cracks in the…