The 20 Most Valuable Rocks & Minerals Found In California

Living in California, we’re surrounded by natural beauty, but have you ever thought about what’s hiding beneath the surface? Our state is a goldmine—literally and figuratively—for valuable rocks, minerals, and gems. Whether you’re into collecting or want to make a little extra cash, there’s a world of treasures waiting to be discovered here. Take gold, … Read more

The 20 Most Valuable Rocks & Minerals Found In California

Living in California, we’re surrounded by natural beauty, but have you ever thought about what’s hiding beneath the surface? Our state is a goldmine—literally and figuratively—for valuable rocks, minerals, and gems. Whether you’re into collecting or want to make a little extra cash, there’s a world of treasures waiting to be discovered here. Take gold, … Read more

The 37 Most Promising Places To Find Opal In Iowa In 2025

Iowa’s landscape was carved by massive glaciers over 12,000 years ago, leaving behind unique geological formations that still surprise rock hunters today. While Iowa isn’t famous for opals like Australia, dedicated rockhounds have found some interesting specimens in unexpected places across the state. The thrill of discovering these colorful gems makes the hunt worthwhile. We’ve … Read more

The 21 Top-Recommended Spots to Find Opal in Kentucky in 2025

Kentucky’s rich mineral heritage goes beyond coal and limestone. While many folks associate opals with Australia, our state has its own hidden treasures waiting to be discovered. Whether you’re a first-time rockhound or a seasoned collector, finding the right spot to search for opals can be tricky. We’ve spent months talking to local collectors and … Read more

The 37 Most Promising Places To Find Opal In Iowa In 2025

Iowa’s landscape was carved by massive glaciers over 12,000 years ago, leaving behind unique geological formations that still surprise rock hunters today. While Iowa isn’t famous for opals like Australia, dedicated rockhounds have found some interesting specimens in unexpected places across the state. The thrill of discovering these colorful gems makes the hunt worthwhile. We’ve … Read more