Peridot comes from a surprisingly small number of places on Earth, with the vast majority of gem-quality stones originating from deposits in the United States, Pakistan, Myanmar, China, and historically Egypt. Because peridot is the gem variety of the mineral olivine, which forms deep in the Earth’s mantle rather than in the crust like most gemstones, it only surfaces in areas with specific volcanic or tectonic activity. That geological requirement means commercial deposits are scattered unevenly across the globe, and the character of the stones varies noticeably from one source to the next.
Why Peridot Shows Up Where It Does
Olivine crystallizes at extreme depths, typically in the upper mantle at around 20 to 55 miles below the surface, under temperatures and pressures far beyond what most minerals need. Getting those crystals to where humans can dig them up requires some dramatic geology. The two main delivery mechanisms are volcanic eruptions, which carry olivine-bearing rock (often basalt) to the surface as xenoliths or loose crystals, and tectonic collisions that push slabs of mantle rock upward along fault zones. This is why peridot deposits tend to cluster either around volcanic fields or along the suture zones where continental plates have collided and crumpled together.
The practical result is that peridot mining looks very different depending on the deposit type. In volcanic settings, miners often collect loose crystals weathered out of basalt flows on the surface or in shallow pits. In tectonic settings, like the mountain belts of Pakistan, miners work harder rock at higher elevations, sometimes extracting peridot from dunite or peridotite veins exposed by erosion. The geological origin also affects color and clarity. Volcanic-hosted peridot tends to be smaller but often has fewer inclusions, while tectonically sourced stones from Pakistan can reach much larger sizes with a deeper, more saturated green.
Arizona’s San Carlos Reservation
The single largest source of peridot on the global market, by sheer volume of stones sold, is the San Carlos Apache Reservation in eastern Arizona. The deposit sits on a basalt mesa where olivine crystals weathered out of ancient lava flows collect in the soil and loose gravel. Mining here is done by enrolled members of the San Carlos Apache Tribe, who gather the crystals by hand or with simple tools from shallow surface deposits. No heavy machinery or deep shafts are involved.
San Carlos peridot is sometimes described as less desirable than stones from Pakistan or Myanmar because the crystals are typically small, most under five carats when cut, and the color leans toward a lighter, yellowish green rather than the rich olive tone collectors prefer. But the volume is enormous, and these stones fill the affordable jewelry market worldwide. If you have ever bought a peridot ring or pendant at a mainstream jewelry store, the stone almost certainly came from Arizona. The deposit has been producing steadily for decades and shows no sign of running out.
Zabargad Island and the Ancient Egyptian Connection
Peridot has been mined longer than almost any other colored gemstone, and the original source was Zabargad Island (also called St. John’s Island) in the Red Sea, about 50 miles off the Egyptian coast. The ancient Egyptians were mining peridot there as early as 1500 BCE, and the island remained a significant source through the Roman period and into the Middle Ages. Many of the “emeralds” described in ancient texts, including some attributed to Cleopatra, were almost certainly peridot.
Zabargad is geologically unusual. The island is essentially a chunk of uplifted mantle rock, peridotite that was pushed to the surface along a rift zone in the Red Sea. The peridot occurs in veins within this peridotite, and the stones can be remarkably large and deeply colored. Some of the finest museum specimens of peridot in the world originally came from Zabargad. Mining on the island has been intermittent for centuries and is essentially inactive today, but the location matters historically because it established peridot as a gemstone of cultural significance long before any other deposit was known.
Pakistan’s High-Altitude Deposits
The discovery of peridot in the mountains of northern Pakistan during the 1990s transformed the gem market for this stone. The primary deposits are in the Kohistan district and the Kaghan Valley area, where tectonic forces along the collision zone between the Indian and Eurasian plates have exposed deep-seated ultramafic rocks. The Sapat mafic-ultramafic complex, which sits at the tectonic base of the Cretaceous Kohistan island arc in the hanging wall of the Indus suture zone north of the Kaghan Valley, is one of the key geological formations associated with these deposits.1Geological Society, London, Special Publications. The Sapat mafic-ultramafic complex, Kohistan arc, North Pakistan
What makes Pakistani peridot exceptional is size and color. Stones over 10 carats are not uncommon, and the best specimens display an intense, slightly warm green that gem dealers often compare to the finest Zabargad material. Some stones from the Suppat Valley (an alternate transliteration of Sapat) have reached over 100 carats in the rough. The mining conditions are harsh: deposits sit at elevations above 4,000 meters in steep, remote terrain, accessible only during summer months. Miners work by hand in difficult conditions, and transporting rough material down the mountains adds cost and risk. Despite this, Pakistani peridot has become the benchmark for collector-grade stones and commands the highest prices per carat of any peridot on the market.
Myanmar’s Mogok Stone Tract
Myanmar has been a source of fine gemstones for centuries, and peridot is part of that legacy. The primary peridot locality is the Pyaung-Gaung area within the Mogok Stone Tract, a region more famous for rubies and sapphires. Peridot here occurs in association with volcanic activity, and the stones tend to be clean and well-colored, though generally smaller than the best Pakistani material.
Myanmar peridot occupies a middle ground in the market: better color and clarity than most Arizona stones, more available than Pakistani material, and often cut in sizes suitable for fine jewelry. The gemological properties of Mogok peridot, including its refractive index and specific gravity, are consistent with high-quality forsterite-rich olivine. Political instability and international sanctions on Myanmar’s gem trade have made sourcing from this region complicated in recent years, and some dealers have moved toward other origins as a result. Still, Myanmar remains a meaningful contributor to the global supply of peridot, particularly for stones in the 2-to-8-carat range.
China’s Expanding Production
China has quietly become one of the world’s most important peridot producers. The primary deposits are in Jilin Province in the country’s northeast, where peridot occurs in Neogene basalts along major fault zones. The older Dashihe mine near Jiaohe was joined in 2016 by the Yiqisong South Mountain mine in the Yiqisong District, located about 5 kilometers northeast of Dashihe. This newer deposit covers roughly 5 square kilometers and is mined using the room-and-pillar method of underground mining, a significant step up in scale from the surface collection methods used at many other peridot localities. Estimated reserves at the Yiqisong deposit alone run to approximately 450 tonnes of gem-quality peridot.2The Journal of Gemmology. Characterisation of Peridot from China’s Jilin Province and from North Korea
That 450-tonne figure is striking. For context, most peridot deposits around the world are measured in kilograms of annual production, not hundreds of tonnes of proven reserves. The Chinese deposits are hosted in basalt, similar to Arizona, but the scale of the operation and the underground mining approach suggest a level of commercial investment that goes well beyond artisanal collection. Chinese peridot tends to be comparable in quality to mid-range material from other volcanic sources: clean enough for commercial jewelry, usually in lighter green tones, and available in moderate sizes. The sheer volume positions China as a major force in the affordable peridot segment of the market.
A related deposit has also been identified just across the border in North Korea, within the same geological formation. Whether that deposit is being actively mined is difficult to confirm, but the geological continuity between the two areas suggests the potential resource extends beyond the Chinese border.
Vietnam and Other Southeast Asian Sources
Vietnam entered the peridot map more recently, with deposits discovered in the Central Highlands region. The geological setting is similar to other basalt-hosted deposits in the region: olivine crystals occur within or weathered from Cenozoic basalt flows. Vietnamese peridot has attracted gemological interest because some stones display good color saturation and relatively few inclusions. The deposit is not yet a major commercial source on the scale of Arizona or China, but it adds to the growing roster of Southeast Asian peridot localities.
Smaller peridot occurrences have also been documented in parts of Tanzania, Kenya, and Ethiopia in East Africa. Ethiopian peridot in particular has gained some market attention in the past decade, with stones appearing in gem shows that rival mid-grade Pakistani material in color. Whether any of these African sources develop into consistent commercial suppliers remains to be seen, but they reflect a broader pattern: as demand for colored gemstones grows and prospecting technology improves, new peridot deposits keep turning up in volcanic and tectonic settings around the world.
Hawaii’s Green Sand and Why You Cannot Buy Hawaiian Peridot
Hawaii is famous for its olivine. The green sand beach at Papakōlea on the Big Island gets its striking color from olivine crystals eroded out of a volcanic cinder cone, and visitors often assume this means Hawaii is a source of peridot gemstones. It is not, at least not in any commercial sense. The olivine crystals at Papakōlea and other Hawaiian volcanic sites are too small and too included to cut into gemstones. They are fascinating geologically and beautiful in aggregate, but individual crystals rarely exceed a few millimeters.
More importantly, collecting sand or minerals from Hawaiian beaches is illegal under state law, and Papakōlea sits within a protected area. The beach is culturally significant to Native Hawaiians. So while Hawaii demonstrates the volcanic process that creates olivine beautifully, it is not a source of peridot for the gem trade and should not be treated as one.
How to Tell Where Your Peridot Came From
For most consumers, determining the origin of a peridot without laboratory analysis is difficult but not impossible if you know what to look for. Pakistani peridot tends to have a richer, more saturated green, sometimes with a slight golden warmth, and is more likely to appear in larger sizes. Arizona peridot is typically lighter and more yellowish green, and is rarely seen above 3 or 4 carats. Chinese and Vietnamese peridot generally falls somewhere in between, leaning toward the lighter end of the spectrum. Myanmar stones often have excellent clarity and a balanced green.
Gemological laboratories can identify origin more precisely by analyzing trace-element chemistry and inclusion characteristics. Different geological environments leave different chemical fingerprints in the olivine crystal. For instance, peridot from volcanic basalt sources tends to have different chromium and nickel ratios than peridot from tectonically uplifted peridotite. Certain inclusion types, like chromite crystals or “lily pad” disc-shaped fractures, are more characteristic of specific origins. If origin matters to you as a buyer, ask for a gemological report from a reputable lab. For most jewelry purchases, though, color, clarity, and size matter more than provenance.
Peridot’s Surprising Second Life in Climate Science
Olivine, the mineral family peridot belongs to, has attracted attention from an unexpected quarter: climate researchers looking for ways to pull carbon dioxide out of the atmosphere. The idea, called enhanced weathering, is straightforward. When olivine reacts with water and dissolved CO₂, it breaks down and locks the carbon into stable carbonate minerals like aragonite. This happens naturally over geological timescales, but researchers are investigating whether grinding olivine into fine particles and spreading it in coastal marine environments could speed the process enough to make a dent in atmospheric CO₂ levels.
Laboratory experiments have shown that finely ground olivine-rich rocks like dunite and harzburgite can dramatically change seawater chemistry within hours when ball-milled to small particle sizes, drawing down CO₂ from the atmosphere and promoting the formation of carbonate minerals.3Applied Geochemistry. Carbon sequestration via enhanced weathering of peridotites and basalts in seawater Separate experiments confirmed that dissolving forsterite-rich olivine in seawater increases alkalinity and causes additional CO₂ uptake, validating the basic concept.4PubMed Central. Olivine Dissolution in Seawater: Implications for CO2 Sequestration through Enhanced Weathering in Coastal Environments
The connection to peridot mining is indirect but real. The same ultramafic rock formations that produce gem-quality peridot also contain vast quantities of non-gem olivine. Norway, for example, has enormous dunite deposits that are already quarried for industrial purposes and could serve as feedstock for enhanced weathering projects. If this technology scales up, the geology of olivine, the same geology that puts peridot in jewelry stores, could play a role in addressing climate change. The quantities involved would dwarf anything the gem trade uses: proposals for meaningful carbon sequestration talk about spreading millions of tonnes of crushed olivine along coastlines, compared to the few hundred tonnes of gem-quality peridot the entire jewelry industry handles annually.
Extraterrestrial Peridot
Peridot holds the distinction of being one of very few gemstones found in material from outer space. Pallasites, a rare type of stony-iron meteorite, contain olivine crystals embedded in a nickel-iron matrix. When sliced and polished, the translucent green olivine crystals in a pallasite are visually striking and undeniably peridot. The Esquel meteorite from Patagonia, Argentina, is one of the most famous examples, with gem-quality olivine crystals large and clear enough to be faceted into small stones.
Extraterrestrial peridot is a curiosity rather than a commercial source. The crystals are typically small, often fractured, and the supply is limited to whatever pallasites have been found and cut. But they fascinate collectors because they represent olivine that crystallized in the mantle of a differentiated asteroid billions of years ago, not on Earth at all. A faceted stone from a pallasite meteorite is, in a literal sense, a gem from another world. Prices reflect the novelty: tiny pallasite peridots can sell for many times what an equivalent-sized terrestrial stone would fetch, purely because of the origin story.
Olivine has also been detected on Mars and the Moon through remote sensing and sample analysis, confirming that it is one of the most abundant minerals in the inner solar system. On Earth, we mine it for jewelry and study it for climate applications. Elsewhere, it simply sits on alien surfaces, waiting.