Where can you find geodes?

Answer

Geodes are mostly found in deserts, volcanic ash beds and areas with limestone throughout the world. In the United States, common geode sites include Arizona, California, Iowa, Nevada and Utah. The most abundant geode sites in California are Riverside and Imperial counties.

According to DesertUSA, one of the most popular geode areas is known as the Hauser Geode Beds, which are found at Wiley Well in Imperial Valley, California. Other well-known places with the finest concentration of geodes are the Cinnamon Geode Beds and the North Black Hills Geode Beds.

Geodes are found in volcanic rocks and sedimentary rocks such as limestone and dolomite. They form in sedimentary rocks when cavities are dissolved by ground water and minerals are deposited again as crystals. Additionally, they form in pre-existing concretions and spaces caused by expansion of rocks due to internal fluid pressure.

Geodes typically have minerals like carbonates, a crystal lining of quartz and an outer shell of chalcedony. Their size often reaches over a meter in diameter. Geodes made of dolomite and calcite have been found in sedimentary rocks in the Muswellbrook-Singleton region in New South Wales. According to the Australian Museum, volcanic geodes made of chalcedony, calcite, agate and amethyst quartz have been found in several regions in Queensland, New South Wales and Victoria.

Q&A Related to "Where can you find geodes?"
1. Locate areas in Idaho where geodes are likely to be found. There are several books available on the minerals of Idaho and where they are located. You can also go to the Idaho Department
http://www.ehow.com/how_6926434_geodes-idaho.html
I found some good ones in a gravel pit in little falls MN.
http://wiki.answers.com/Q/Where_to_find_geodes_in_...
If you would like to find information about the state of Nevada, there is an official state web site. The site has information about the state government, as well as events and activities
http://www.ask.com/web-answers/Society/Government_...
Geodes start out as bubbles in volcanic rock or as animals burrow in sedimentary rock.
http://www.chacha.com/question/where-do-they-find-...
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