Rubies, renowned for their vivid red color and exceptional hardness, have long been a symbol of passion, power, and wealth. While many associate rubies with exotic locales like Myanmar and Thailand, these precious gemstones can also be found within the United States. This article will guide you through the history, geology, and specific locations where you can find rubies in the United States, offering insights into the fascinating world of ruby hunting.
Understanding Rubies
What is a Ruby?
Rubies are a variety of the mineral corundum, composed primarily of aluminum oxide with trace amounts of chromium, which gives them their characteristic red color. They are one of the hardest gemstones, ranking 9 on the Mohs scale, just below diamonds. The most prized rubies exhibit a deep, vibrant red color, often referred to as “pigeon’s blood.”
Geological Formation
Rubies form under high-pressure and high-temperature conditions within the Earth’s crust. They are typically found in metamorphic rocks such as marble and schist, or in alluvial deposits where they have been eroded from their original source and deposited by water. The geological processes that create rubies involve the interaction of aluminum-rich rocks with chromium-bearing fluids, resulting in the crystallization of ruby within host rocks.
A Brief History of Ruby Mining in the United States
Ruby mining in the United States has a relatively short history compared to other countries. The first significant discovery of rubies in the U.S. was made in North Carolina in the late 19th century. Since then, several states have produced rubies, though often in smaller quantities compared to international sources. The exploration and mining of rubies have primarily been driven by enthusiasts and small-scale miners rather than large commercial operations.
Primary Ruby-Bearing Regions in the United States
North Carolina
Mason’s Ruby and Sapphire Mine
North Carolina is home to some of the most significant ruby deposits in the United States. Mason’s Ruby and Sapphire Mine, located in Franklin, has been a popular destination for gem enthusiasts and tourists for decades. The mine offers a hands-on experience where visitors can screen for rubies and other gemstones in the native soil. The rubies found here are typically small but of good quality, making it an exciting spot for amateur gem hunters.
Sheffield Mine
Another notable location in North Carolina is the Sheffield Mine, also near Franklin. This mine allows visitors to dig for native gemstones, including rubies. The Sheffield Mine has a rich history and is known for producing beautiful star rubies, which exhibit asterism, a star-like pattern of light on the surface of the gemstone.
Montana
Gem Mountain Sapphire Mine
While Montana is more famous for its sapphires, it also offers opportunities to find rubies. The Gem Mountain Sapphire Mine, located in the Sapphire Mountains, provides visitors with the chance to mine for various gemstones, including rubies. The rubies found here are often small and pale in color, but the experience of mining in the scenic Montana landscape is rewarding.
Rock Creek
The Rock Creek area in Montana is another spot where rubies can occasionally be found. This region is known for its alluvial deposits, where rubies and sapphires have been transported by water and deposited in gravel beds. Rock Creek offers a unique mining experience for those willing to explore and sift through the gravels.
Wyoming
Granite Mountains
Wyoming’s Granite Mountains are known for their diverse mineral deposits, including rubies. The rubies found in this region are typically associated with ultramafic rocks, which are rich in magnesium and iron. Ruby hunting in the Granite Mountains requires some geological knowledge and perseverance, but the potential rewards make it a worthwhile endeavor.
Other Notable Locations
While North Carolina, Montana, and Wyoming are the primary sources of rubies in the United States, rubies have also been found in other states such as Idaho, Colorado, and Nevada. These occurrences are generally less well-known and may require more effort to locate, but they add to the diverse range of ruby-bearing areas in the country.
See Also: Why Choose Natural Ruby Rings?
Tips for Ruby Hunting in the United States
Research and Preparation
Before embarking on a ruby hunting adventure, thorough research and preparation are essential. Understanding the geology of the area, obtaining necessary permits, and having the right tools and equipment can make the difference between a successful and unsuccessful trip.
Tools and Equipment
For a successful ruby hunting expedition, you will need basic tools such as shovels, buckets, and screens for sifting through soil and gravel. A good quality rock hammer and chisel can also be helpful for extracting rubies from harder rock formations. Additionally, bring a loupe or magnifying glass to inspect potential rubies closely.
Safety Considerations
Safety should always be a priority when hunting for rubies. Wear appropriate clothing and footwear, and be mindful of your surroundings. In some areas, you may encounter wildlife or rugged terrain, so it’s essential to be prepared and take necessary precautions.
Identifying Rubies
Identifying rubies in the field can be challenging, especially for beginners. Rubies are typically red but can vary in hue from pinkish-red to deep red. They are often found in association with other minerals such as mica, feldspar, and quartz. Familiarize yourself with the physical properties of rubies, including their hardness and specific gravity, to help distinguish them from other minerals.
Caring for Your Ruby Finds
Cleaning and Storing Rubies
Once you have successfully found rubies, proper cleaning and storage are crucial to preserve their beauty and value. Use mild soap and water to clean your rubies, and avoid harsh chemicals that could damage the gemstone. Store your rubies in a soft cloth or padded jewelry box to prevent scratches and other damage.
Professional Evaluation
If you find a ruby that you believe is of significant value, consider having it professionally evaluated by a gemologist. They can provide an accurate assessment of the ruby’s quality and potential worth. A professional evaluation is especially important if you plan to sell or set the ruby in jewelry.
Conclusion
Finding rubies in the United States is a thrilling and rewarding experience for gem enthusiasts and adventurers alike. While the country’s ruby deposits may not be as extensive as those found in other parts of the world, the diverse range of locations and the unique beauty of American rubies make them a sought-after treasure.
