Sourced in the United States, the American Mined™ Collection includes Oregon jasper and other fair-mined gemstones, cabochons, and beads. An opaque form of chalcedony, or quartz, jasper derives its name from French roots meaning spotted or mottled–that appearance is due to an abundance of iron oxides, hydroxides and other inclusions in its composition. Its striking characteristics and depth of colors are defined by the amount of mineral impurities mixed with a natural silica-rich fluid.
Most of the semiprecious gemstones mined today were formed millions of years ago in hollow volcanic rock cavities created by lava gas emissions. While they typically dull upon first impression, some minimal buffing or quick lapidary work delivers high shine to these sought-after beauties.
History depicts jasper as a source of strength and protection. As resilient as it is attractive, jasper is found in many architectural structures. Decorative walls adorn the Taj Mahal in Agra, the Great Mosque of Córdoba in Spain, and the St. Wenceslas Chapel in Prague. Jasper also is found in ornate jewelry designs and other ancient artifacts. Vases, Roman signet rings, and other jewelry displayed in museums and galleries around the world showcase its signature colors and patterns.
An affordable, fascinating gemstone, jasper is ideal for a variety of jewelry designs. Modern, trending larger pieces include statement rings, pendants, and bracelets, complemented by karat-gold and gold-filled wire, bezels, and findings. Drop earrings and simple studs are popular options for smaller creations—in which no two cabochons exactly match.
Due to its array of colors, striations, and spots, it’s no wonder jasper is making a jewelry industry revival. Mined jasper is found in multicolored variations of red, yellow, green, gray and rare blue shades. Our American Mined™ Collection (AMC) of red and gray jasper is offered in an assortment of sizes and shapes. Each gemstone is unique and carefully selected to match our customer’s expectations. Custom pieces and one-of-a-kind designs are guaranteed when incorporating jasper into a jewelry line.
Rio Grande is proud to offer our American Mined™ Collection in collaboration with the American Gem Trade Association (AGTA). Every AMC gemstone, cabochon, and bead follows a documented path from its source to your bench—while meeting or exceeding AGTA ethical standards and practices throughout the supply-chain process. Following a true mine-to-market mentality, the American Mined Collection represents high-end gemstones with a traceable, shared story.
Jasper happens to be a designer’s dream considering its limitless patterns of banding. Customer interest and demand drive the ever-growing additions of ethically sourced gemstones, cabochons and beads in the American Mined™ Collection. Rio Grande works in tandem with mines and supply chains to deliver the most beautiful selection of Oregon jasper to jewelry artisans and businesses around the world.