Obsidian is one of the most captivating natural materials. While it's commonly black, it can also display a spectrum of hues depending on the minerals present during its formation.
Obsidian forms when molten lava cools so rapidly that it bypasses crystal formation, solidifying into a smooth, glossy surface.
The process often occurs when lava comes into sudden contact with water or air, resulting in obsidian's distinctive shiny texture and razor-sharp edges.
Obsidian is found in volcanic regions worldwide. In the United States, some of the best locations to find it are Oregon, Idaho, California, Arizona, and New Mexico.
Before heading out to collect obsidian, check local regulations to ensure that collecting is permitted.
Understanding Obsidian: Formation, Composition, and Identification
Where to Find Obsidian? - Best Collection Sites
Arizona, California, Oregon, Idaho, Nevada, and New Mexico have rich volcanic histories, making these states the best places to find and collect obsidian.
Particularly famous collecting spots in the West include Glass Butte and Hines in Oregon and the Modoc National Forest in California. These areas are rich in jet-black obsidian, but each also offers distinctive types of volcanic glass, adding to their allure for collectors.

Glass Butte - Eastern Oregon
Glass Butte, located in Central Oregon, is renowned as the largest obsidian deposit in the world. This 6,000-acre Free Public Use Area offers rockhounds and nature enthusiasts the opportunity to explore and collect a wide variety of obsidian types, including black, mahogany, rainbow, gold sheen, and even red fire obsidian. Glass Butte: The Largest Obsidian Deposit In The World
Hines - Eastern Oregon
Hines, Oregon, located off Highway 20 near the town of Burns, is an excellent spot for collecting various types of obsidian. In this area, you can find jet-black obsidian, snowflake obsidian, and even green or bluish varieties, with the occasional discovery of rare red obsidian.

Davis Creek - Northern California
Davis Creek, nestled in the Modoc National Forest, is a well-known destination for collecting various obsidian types. You can find rainbow, mahogany, red-and-black, and silver-and-gray obsidian. Before collecting, be sure to stop by the Davis Creek Mercantile to obtain a free permit.
Interactive Map of Apache Tear and Obsidian Collection Sites
Disclaimer
The Gimme Rocks website ("We") provides information on a variety of rock and mineral collection sites. Please note that the information may change anytime, and we cannot guarantee its accuracy or currency. Some collecting areas are located near mine claims or private lands, and it is your responsibility to determine the land status and applicable collection rules.
Be aware that GPS truck navigators and app-based driving directions may not always be accurate. Additionally, cell service may be unavailable in certain remote areas.