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How is obsidian dependent to minerals?
how is obsidian dependent on minerals
What are the minerals in obsidian?
Obsidian is, itself, a mineral.
What minerals does obsidian have?
none
Does an obsidian rock have minerals you can see with magnification?
No, obsidian is volcanic glass.
What does obsidian mean in rocks and minerals?
Obsidian is black glass formed by volcanoes.
Are all rocks made of minerals?
Not all rocks are made of minerals. Rocks can be composed of minerals or can be made up of organic materials like shells, fossils, or volcanic glass. Some rocks, like coal or obsidian, do not contain minerals but are still considered rocks.
Does obsidian have any minerals present?
No, it is a colloidal glass.
What minerals is the obsidian rock made of?
Obsidian is a volcanic glass, so the main component is silica. It is 70-75% SiO2, plus MgO, Fe3O4. Mainly from molten granite, carbonated basalt and quartz for shininess.
What minerals make up a obsidian?
salt, silca, and grain
What is the geology of obsidian?
Obsidian is volcanic glass. unusually amongst the various rocks and minerals it is made of one single piece with no individual grains. this is due to it being cooled extremly rapidly from a magma (most commonly into a cool sea.) the dark colour is caused by heavy amounts of included minerals.
What igneous rock does not have any minerals in it?
Obsidian is an igneous rock that technically is not composed of minerals. It is a natural glass.
Why is the texture of obsidian is best contain few or no minerals grains?
Obsidian cools so quickly the mineral grains do not have time to form.
