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Obsidian is a fairly common and has little collector value. The only Obsidian that has a bit more value is Rainbow Obsidian. Which is still fairly common.
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∙ 14y ago
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What are very smooth rocks called?
obsidian obsidian
What rocks do not weather or erode?
obsidian
What color is an obsidian rock?
obsidian rocks are red and black also sometimes orange
Smooth glassy rock?
Obsidian: Its texture is glassy. Obsidian is extrusive or volcanic, because the instantaneous cooling that produces such rocks is a surface phenomenon. Obsidian is amorphous, so, unlike true rocks, it is not composed of minerals.
Where is az can i find obsidian glass or rocks?
You'll find obsidian by volcanoes where the magma cooled ultra-quickly.
What family is obsidian in?
Obsidian is part of the Granite family of igneous rocks.
What are very smooth rocks called?
obsidian obsidian
Why do obsidian rocks look dark?
because an obsidian rock has low silica
What does obsidian mean in rocks and minerals?
Obsidian is black glass formed by volcanoes.
What type of rocks are pumice obsidian and granite?
Igneous rocks
What are rocks that have a glassy texture called?
Obsidian
What rocks do not weather or erode?
obsidian
Do obsidian rocks cool fast?
Obsidian is formed from very rapidly cooling lava.
Is pumice and obsidian exaples of minerals?
No. Pumice and obsidian are rocks composed mostly of glass.
What color is an obsidian rock?
obsidian rocks are red and black also sometimes orange
How is obsidian and coal rock alike?
Obsidian and coal are both rocks and they are formed by lava
Name 4 kinds of igneous rocks?
Examples of igneous rocks are pumice, obsidian, basalt, and rhyolite.
