Where to Find Rocks & Minerals
Pick a rock or mineral to open its map. Each entry shows every mapped spot in our database with a country filter so you can drill into the region you're planning a trip to. Cards link to the encyclopedia when an identification guide exists.
Gemstones
Cut, polished, and collector-grade gem materials.
Amethystcommon166 spots · 39 regions · Mohs 7Top: North Carolina, Virginia, South Carolina
Aquamarineuncommon60 spots · 19 regions · Mohs 7.5-8Top: North Carolina, Connecticut, Maine
Sapphirecommon59 spots · 18 regions · Mohs 9Top: North Carolina, Montana, Idaho
Moonstonecommon33 spots · 17 regions · Mohs 6Top: Oregon, North Carolina, California
Rose Quartzcommon33 spots · 11 regions · Mohs 7Top: Connecticut, New Hampshire, Georgia
Rubyrare29 spots · 10 regions · Mohs 9Top: North Carolina, Georgia, Wyoming
Diamondcommon27 spots · 13 regions · Mohs 10Top: North Carolina, Wisconsin, California
Fire Opaluncommon17 spots · 5 regions · Mohs 5.5-6.5Top: New Jersey, Nevada, Idaho
Crystals & minerals
Naturally occurring crystalline solids with defined chemistry.
Quartzcommon636 spots · 78 regions · Mohs 7Top: North Carolina, Utah, Pennsylvania
Agatecommon552 spots · 62 regions · Mohs 6.5-7Top: Oregon, New Mexico, Utah
Jaspercommon506 spots · 60 regions · Mohs 6.5-7Top: Oregon, New Mexico, Utah
Chalcedonycommon347 spots · 56 regions · Mohs 6.5-7Top: Utah, Oregon, Wyoming
Pyritecommon305 spots · 52 regions · Mohs 6-6.5Top: Utah, Missouri, North Carolina
Goldcommon277 spots · 37 regions · Mohs 2.5-3Top: Nevada, Utah, Montana
Calcitecommon273 spots · 53 regions · Mohs 3Top: Missouri, Utah, New Jersey
Garnetcommon209 spots · 36 regions · Mohs 6.5-7.5Top: North Carolina, Utah, Georgia
Galenacommon190 spots · 45 regions · Mohs 2.5Top: Utah, Missouri, New Jersey
Fluoritecommon158 spots · 38 regions · Mohs 4Top: Utah, New Mexico, New York
Malachitecommon151 spots · 29 regions · Mohs 3.5-4Top: Utah, Missouri, New Mexico
Sphaleritecommon142 spots · 41 regions · Mohs 3.5-4Top: Missouri, Utah, Tennessee
Berylcommon135 spots · 28 regions · Mohs 7.5-8Top: North Carolina, Connecticut, New Hampshire
Chalcopyritecommon134 spots · 37 regions · Mohs 3.5-4Top: Utah, Missouri, New Mexico
Coppercommon126 spots · 25 regions · Mohs 2.5-3Top: Nevada, New Mexico, Michigan
Chertcommon125 spots · 30 regions · Mohs 6.5-7Top: Michigan, Florida, New Mexico
Baritecommon107 spots · 26 regions · Mohs 3-3.5Top: Utah, Missouri, Oklahoma
Hematitecommon100 spots · 31 regions · Mohs 5.5-6.5Top: Utah, Missouri, Michigan
Smoky Quartzcommon100 spots · 33 regions · Mohs 7Top: North Carolina, Colorado, Maine
Tourmalinecommon95 spots · 32 regions · Mohs 7-7.5Top: North Carolina, Georgia, Utah
Azuritecommon94 spots · 20 regions · Mohs 3.5-4Top: Utah, Missouri, New Mexico
Lake Superior Agatecommon92 spots · 8 regions · Mohs 6.5-7Top: Minnesota, Michigan, Wisconsin
Epidotecommon87 spots · 32 regions · Mohs 6-7Top: North Carolina, Virginia, New Jersey
Silveruncommon84 spots · 13 regions · Mohs 2.5-3Top: Nevada, Utah, Montana
Magnetitecommon83 spots · 24 regions · Mohs 5.5-6.5Top: Utah, North Carolina, New York
Limonitecommon71 spots · 21 regions · Mohs 4-5.5Top: Utah, North Carolina, Iowa
Feldsparcommon70 spots · 22 regions · Mohs 6Top: Maine, North Carolina, New HampshireSee the map →No ID guide
Apatitecommon66 spots · 23 regions · Mohs 5Top: Utah, New Jersey, North Carolina
Carneliancommon63 spots · 23 regions · Mohs 6.5-7Top: Oregon, Washington, North Carolina
Marcasitecommon63 spots · 19 regions · Mohs 6-6.5Top: Missouri, Indiana, Wisconsin
Cerussitecommon61 spots · 17 regions · Mohs 3-3.5Top: Utah, Missouri, New Mexico
Staurolitecommon61 spots · 19 regions · Mohs 7-7.5Top: North Carolina, Georgia, New Hampshire
Kyanitecommon60 spots · 14 regions · Mohs 4.5-7Top: North Carolina, Georgia, Wisconsin
Gypsumcommon59 spots · 17 regions · Mohs 2Top: Utah, Wyoming, Missouri- DolomiteDolomitecommon58 spots · 20 regions · Mohs 3.5-4Top: Missouri, Tennessee, West VirginiaSee the map →No ID guide
Opalcommon56 spots · 23 regions · Mohs 5.5-6.5Top: Utah, Idaho, Nevada
Corundumcommon54 spots · 16 regions · Mohs 9Top: North Carolina, Georgia, Idaho
Topazcommon54 spots · 23 regions · Mohs 8Top: Utah, Colorado, New Hampshire
Zirconcommon52 spots · 22 regions · Mohs 7.5Top: Utah, Colorado, South Carolina
Serpentinecommon51 spots · 17 regions · Mohs 2.5-5.5Top: Maryland, California, New Jersey
Muscovitecommon45 spots · 19 regions · Mohs 2.5-3Top: Connecticut, Maine, North Carolina
Moss Agatecommon44 spots · 21 regions · Mohs 6.5-7Top: Oregon, Kansas, Wyoming
Albitecommon42 spots · 14 regions · Mohs 6-6.5Top: New Jersey, Maine, Connecticut
Chrysocollacommon42 spots · 16 regions · Mohs 2-4Top: New Mexico, Utah, Arizona
Rutilecommon41 spots · 9 regions · Mohs 6-6.5Top: North Carolina, Virginia, Utah
Leadrare40 spots · 5 regions · Mohs 1.5Top: Nevada, Idaho, UtahSee the map →No ID guide
Celestitecommon37 spots · 12 regions · Mohs 3-3.5Top: Tennessee, Ohio, Indiana
Goethitecommon37 spots · 18 regions · Mohs 5-5.5Top: Missouri, New Jersey, Utah
Sideritecommon37 spots · 17 regions · Mohs 3.5-4Top: New Jersey, Utah, Illinois
Smithsonitecommon37 spots · 16 regions · Mohs 4-4.5Top: Missouri, Wisconsin, Tennessee
Prehnitecommon36 spots · 11 regions · Mohs 6-6.5Top: Michigan, New Jersey, Connecticut
Diopsidecommon35 spots · 17 regions · Mohs 5.5-6.5Top: Utah, New York, Vermont
Micacommon35 spots · 14 regions · Mohs 2-3Top: North Carolina, Georgia, MaineSee the map →No ID guide
Chalcocitecommon34 spots · 14 regions · Mohs 2.5-3Top: Utah, New Mexico, Connecticut
Bornitecommon32 spots · 14 regions · Mohs 3Top: Utah, New Jersey, Wisconsin
Actinolitecommon31 spots · 14 regions · Mohs 5.5-6Top: North Carolina, Utah, Vermont
Chloritecommon31 spots · 15 regions · Mohs 2-2.5Top: Utah, Pennsylvania, Wisconsin
Pyrolusitecommon31 spots · 8 regions · Mohs 6-6.5Top: Utah, California, Idaho
Selenitecommon31 spots · 18 regions · Mohs 2Top: Utah, North Dakota, Oklahoma
Thundereggcommon31 spots · 7 regions · Mohs 6.5-7Top: Oregon, New Mexico, California
Arsenopyritecommon30 spots · 18 regions · Mohs 5.5-6Top: Idaho, Montana, South Dakota
Biotitecommon30 spots · 13 regions · Mohs 2.5-3Top: Utah, Maine, Wisconsin
Cupritecommon30 spots · 11 regions · Mohs 3.5-4Top: Utah, Missouri, New Jersey
Almandine Garnetcommon29 spots · 13 regions · Mohs 7-7.5Top: Maine, North Carolina, Connecticut
Banded Agatecommon27 spots · 14 regions · Mohs 6.5-7Top: New Jersey, Georgia, CaliforniaSee the map →No ID guide
Aragonitecommon26 spots · 13 regions · Mohs 3.5-4Top: Missouri, Utah, Indiana
Carnotitecommon26 spots · 2 regions · Mohs 2Top: Utah, PennsylvaniaSee the map →No ID guide
Datolitecommon24 spots · 8 regions · Mohs 5-5.5Top: New Jersey, Michigan, Massachusetts
Zincrare24 spots · 8 regions · Mohs 2.5Top: Nevada, Arkansas, IdahoSee the map →No ID guide
Amazonitecommon23 spots · 12 regions · Mohs 6Top: Colorado, Texas, Virginia
Anhydritecommon23 spots · 2 regions · Mohs 3.5Top: Utah, Wyoming
Jadecommon23 spots · 6 regions · Mohs 6-7Top: California, Oregon, Wyoming
Platinumrare23 spots · 5 regions · Mohs 4-4.5Top: Nevada, North Carolina, Oregon
Common Opalcommon22 spots · 9 regions · Mohs 5.5-6.5Top: New Jersey, Nevada, Oregon
Yooperlitecommon22 spots · 1 region · Mohs 6Top: Michigan
Rhodochrositeuncommon21 spots · 9 regions · Mohs 3.5-4Top: Utah, California, North Carolina
Scheelitecommon21 spots · 8 regions · Mohs 4.5-5Top: Utah, Montana, North CarolinaSee the map →No ID guide
Manganeserare20 spots · 11 regions · Mohs 2Top: Nevada, North Carolina, MinnesotaSee the map →No ID guide
Columbiteuncommon19 spots · 8 regions · Mohs 6Top: Connecticut, Maine, North CarolinaSee the map →No ID guide
Halitecommon19 spots · 6 regions · Mohs 2.5Top: Utah, California, Nevada
Lepidolitecommon19 spots · 13 regions · Mohs 2.5-3Top: California, Maine, North Carolina
Pyrrhotitecommon19 spots · 12 regions · Mohs 3.5-4.5Top: Vermont, Idaho, Maine
Cold Water Agatecommon18 spots · 3 regions · Mohs 6.5-7Top: Michigan, Wisconsin, IowaSee the map →No ID guide
Fluorapatitecommon18 spots · 9 regions · Mohs 5Top: Maine, Utah, South DakotaSee the map →No ID guide
Ironrare18 spots · 8 regions · Mohs 4-5Top: Minnesota, Nevada, GeorgiaSee the map →No ID guide
Molybdenitecommon18 spots · 9 regions · Mohs 1-1.5Top: Utah, Maine, New Mexico
Sillimanitecommon18 spots · 10 regions · Mohs 6.5-7.5Top: Georgia, South Carolina, Alabama
Turquoisecommon18 spots · 6 regions · Mohs 5-6Top: Nevada, New Mexico, Texas
Autunitecommon17 spots · 8 regions · Mohs 2-2.5Top: Utah, North Carolina, Connecticut
Chromitecommon17 spots · 8 regions · Mohs 5.5Top: California, Maryland, North Carolina
Flintcommon17 spots · 9 regions · Mohs 7Top: Ohio, Nevada, Florida
Black Tourmalinecommon16 spots · 9 regions · Mohs 7-7.5Top: New Hampshire, North Carolina, Texas
Cinnabaruncommon16 spots · 7 regions · Mohs 2-2.5Top: Nevada, Utah, Arkansas
Hornblendecommon16 spots · 11 regions · Mohs 5-6Top: North Carolina, Utah, Vermont
Microclinecommon16 spots · 13 regions · Mohs 6Top: Connecticut, Utah, Alabama
Rhodonitecommon16 spots · 9 regions · Mohs 5.5-6.5Top: California, Idaho, Massachusetts
Graphitecommon15 spots · 9 regions · Mohs 1-2Top: Connecticut, New York, Tennessee
Herkimer Diamondcommon15 spots · 2 regions · Mohs 7Top: New York, Pennsylvania
Fossils
Petrified, agatized, and mineralized remains.
Petrified Woodcommon252 spots · 35 regions · Mohs 6.5-7Top: Oregon, Montana, Texas
Fossilcommon151 spots · 32 regions · Mohs 3-7Top: Oregon, Michigan, OhioSee the map →No ID guide
Opalized Woodcommon57 spots · 15 regions · Mohs 5.5-6.5Top: Nebraska, Washington, Idaho
Agatized Woodcommon54 spots · 12 regions · Mohs 6.5-7Top: Texas, Nebraska, New Mexico
Silicified Woodcommon42 spots · 18 regions · Mohs 6.5-7Top: Wyoming, North Dakota, Montana
Petoskey Stonecommon39 spots · 1 region · Mohs 3-4Top: Michigan
Charlevoix Stonecommon26 spots · 1 region · Mohs 3-4Top: Michigan
Ambercommon23 spots · 9 regions · Mohs 2-2.5Top: New Jersey, Maryland, New Mexico
Horn Coralcommon22 spots · 3 regions · Mohs 3-4Top: Michigan, Ohio, New York
Crinoidcommon18 spots · 5 regions · Mohs 3-4Top: Michigan, Ohio, Wisconsin
Brachiopodcommon17 spots · 5 regionsTop: Michigan, Ohio, Illinois
Shark Toothcommon17 spots · 6 regions · Mohs 3-5Top: Maryland, Florida, New Jersey
Fossilized Coralcommon15 spots · 8 regions · Mohs 6.5-7Top: Florida, Wisconsin, IndianaSee the map →No ID guide
Sedimentary
Layered rocks formed by deposition and cementing.
Igneous
Rocks born from molten material, volcanic and plutonic.
Metamorphic
Rocks transformed by heat, pressure, or fluids.
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