Gems Found in Wyoming: An Enthusiast's Guide
Updated: 13 hours ago
Wyoming, known for its rugged terrain and rich geological diversity, offers an array of gems and minerals for rockhounding enthusiasts. Here's a comprehensive guide to some of the most notable gems found in Wyoming and the best locations to search for them.
Notable Gems Found in Wyoming
Nephrite Jade
Description: Known as Wyoming Jade, this green gemstone is the state's official gemstone.
Locations: Found in abundance in the Granite Mountains and the Wind River Range.
Agate
Description: Varieties such as moss agate and Sweetwater agate are highly sought after for their beautiful banding and colors.
Locations: Commonly found in the Sweetwater River area, Wind River, and along the Green River Basin (Wyoming State Geological Survey) (How to Find Rocks).
Peridot
Description: A yellowish-green gemstone found by chance in the Leucite Hills.
Locations: Discovered in significant quantities in anthills in the Leucite Hills (Rock Seeker).
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Opal
Description: Wyoming opals range from white to light blue, with some fire and precious opals.
Locations: Cedar Rim near Riverton, Carbon County, and Park County (How to Find Rocks).
Quartz Crystals
Description: Includes varieties like smoky quartz, rose quartz, and clear quartz.
Locations: Found in the Laramie Mountains and the Black Hills area (Wyoming State Geological Survey).
Tourmaline
Description: Typically black or pink, often found in Precambrian pegmatites.
Locations: Found in Albany County, Fremont County, Carbon County, and Goshen County (How to Find Rocks).
Diamond
Description: Both gem-quality and industrial-grade diamonds have been found.
Locations: Notable finds in the Laramie Mountains and the Cedar Mountains (Wyoming State Geological Survey).
Gypsum
Description: A soft mineral used in plasters and fertilizers.
Locations: Mines near the Laramie Mountains and in the Bighorn Basin (Rock Seeker) (How to Find Rocks).
Bentonite
Description: A type of absorbent clay used for industrial purification.
Locations: Found near Rock River and the Bighorn Basin (Rock Seeker).
Azurite and Malachite
Description: Copper carbonate minerals known for their deep blue and green colors.
Locations: Found in areas like Rawhide Buttes, Warren Peak, and Kirwin Mine (How to Find Rocks).
Best Rockhounding Spots in Wyoming
Sweetwater River: Known for its Sweetwater agate.
Cedar Rim: Famous for opal deposits.
Granite Mountains: A prime spot for Wyoming Jade.
Laramie Mountains: Offers a variety of quartz crystals and agates.
Leucite Hills: Unique location for peridot.
Medicine Bow Mountains: Rich in barite and other minerals (Wyoming State Geological Survey) (How to Find Rocks) (How to Find Rocks).
Tips for Gem Hunting
Tools Needed: Sturdy rock hammer, chisels, a compact shovel, rock screen pan, eye protection, and a jeweler's lens.
Best Time to Visit: Summer months provide the best weather conditions for gem hunting.
Safety First: Always wear appropriate safety gear and be aware of local regulations and private property boundaries.
By exploring these areas and using the right tools, you can uncover some of Wyoming's most beautiful and unique gems. Whether you're a seasoned rockhound or a beginner, Wyoming offers a wealth of opportunities for gem hunting adventures.
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