The United States is one of the best countries in the world for finding gemstones in the wild. From sapphires in Montana to opals in Nevada, rubies in North Carolina to turquoise in Arizona, nearly every state has something worth looking for. The articles in this collection cover what gemstones are found in each state, where collectors go to find them, and what you need to know before you head out.
What This Collection Covers
Gemstones by State covers the most significant gemstone finds in each state, the best public collecting sites and fee-dig operations across the country, what permits or permissions are needed to collect on different types of land, which states are most productive for specific gemstone types, seasonal tips for planning collecting trips, and what to bring and what to expect at different types of collecting locations. Whether you are planning a dedicated gem hunting trip or just want to know what might be hiding in your own backyard, these articles give you the information to find it.
Complete Guides
For a full overview of gemstones found across the United States and a state-by-state breakdown, our complete guides cover the country in detail.
Frequently Asked Questions
Which states are best for finding gemstones?
Montana is famous for sapphires. North Carolina produces rubies, emeralds, and a wide variety of other gemstones. Arizona is known for turquoise, peridot, and fire agate. Nevada produces opals and turquoise. Idaho yields garnets and star garnets. Oregon is known for sunstones and thunder eggs. These states have established collecting sites and a long history of productive gem hunting for hobbyists at every level.
Can I legally collect gemstones on public land?
In many cases yes – Bureau of Land Management land generally allows casual collecting of reasonable quantities for personal use. National parks prohibit collecting entirely. State parks vary by state and location. Private land requires permission from the landowner. Always check the specific rules for the land you plan to collect on before you go. Our state guides include land access information for each location covered.
What is a fee-dig site?
A fee-dig site is a privately operated collecting location where you pay an entry fee and keep whatever you find. Many are located at actual mine sites where the geology is known to produce specific gemstones. They are a great option for beginners because the guesswork is removed – you know what you are likely to find and staff are usually on hand to help with identification. North Carolina has a high concentration of fee-dig sites for rubies, sapphires, and emeralds.
Do I need special equipment to find gemstones?
Basic equipment goes a long way. A rock hammer, safety glasses, sturdy bags or containers, a hand lens, and comfortable boots are the essentials for most collecting trips. A small classifier or sieve is useful at stream sites. Some locations like river gravels benefit from a basic gold pan for sorting sediment. Our state guides note what equipment works best for each type of location.
What gemstone is found in the most U.S. states?
Quartz varieties including amethyst, citrine, and agate are found in virtually every state. Garnet is another mineral found across a very wide range of states in various forms. The star garnet – one of the rarest varieties – is found in notable quality in only two places in the world, one of which is Idaho. For truly standout finds at the state level, the articles in this collection cover what makes each state’s specimens distinctive.