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Is obsidian an instrusive or extrusive igneous rock how do you know?
Obsidian is an extrusive rock and is formed from rapidly cooling magma. Obsidian is also known as volcanic glass and one can find only sub-microscopic crystals in it. This is because it was cooled too fastly for large crystals to form. If the material that obsidian consists of were an intrusive rock and had a lot of time to cool down, one would find that it would be composed of easily visible crystals.
Where does obsidian come from?
Obsidian is molten silica (read sand) which has cooled rapidly after a volcanic eruption into brittle glass and is the reason why it chips easily into blades. Iron and magnesium give obsidian its dark color.
Where is az can i find obsidian glass or rocks?
Obsidian can be found in various locations worldwide, but it is commonly found in areas with recent volcanic activity. In the United States, obsidian can be found in places like the American Southwest, especially in states like Arizona, California, and Oregon. Look for areas with past volcanic activity, such as lava flows or volcanic fields, to increase your chances of finding obsidian glass or rocks. Be sure to research local regulations and obtain any necessary permits before collecting.
Are obsidian rocks rare?
Obsidian rocks are not considered rare, as they can be found in many locations around the world where volcanic activity has occurred. However, large and high-quality pieces of obsidian suitable for use in tools or jewelry may be less common and prized by collectors.
What is a glassy rock?
Glassy rocks are rocks that have cooled and solidified quickly, without forming crystals. This rapid cooling prevents mineral crystals from growing, resulting in a smooth and glass-like texture. Obsidian and pumice are examples of glassy rocks.
Can you find obsidian and Missouri?
yes you can. you can find obsidian by digging down constantly. but I'm not to sure about missouri
Where can you find obsidian in Indiana?
Type in "buy obsidian" in your search bar. You will be given information on several sources. Knappable obsidian sells for around $5 US per pound.
Where do you find obsidian in minecraft?
Obsidian is usually found in caves underground where flowing water hits still lava.
Where would you find obisidian?
You could find obsidian near a volcano.
Where is the obsidian in sims 2 castaway?
Once you build the stone hammer you go to the Dark Cave and you will find obsidian deposits.
Where is the best place to find obsidian chunks on HorseIsle?
Any of the Lava Isles are where you can find obsidian chunks. There is no "best" place. Also, sometimes you can find them in the rock shops if another player has sold them recently.
What rock type would you find below a volcano?
obsidian
How can you get obsidian in minecraft pocket edition?
you could find a pool of lave place water then it turnes the lava to obsidian to get it you have to mine it up with a pickaxe
How do you find obsidian in Minecraft Pocket Edition?
make the nether reacter
Is sometimes known as volcanic glass?
Listen in class and find out it's obsidian
Is obsidian malleable?
No. Obsidian is brittle.
What is a type of obsidian?
One type of obsidian is snowflake obsidian, which is black with white mineral inclusions that resemble snowflakes.
