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.
Amethystcommon146 spots · 32 regions · Mohs 7Top: North Carolina, Virginia, New Jersey
Aquamarineuncommon51 spots · 18 regions · Mohs 7.5-8Top: North Carolina, Connecticut, Georgia
Sapphirecommon38 spots · 13 regions · Mohs 9Top: North Carolina, Montana, Idaho
Moonstonecommon28 spots · 14 regions · Mohs 6Top: Oregon, North Carolina, California
Diamondcommon26 spots · 12 regions · Mohs 10Top: North Carolina, Wisconsin, California
Rose Quartzcommon26 spots · 10 regions · Mohs 7Top: Connecticut, New Hampshire, Georgia
Rubyrare20 spots · 7 regions · Mohs 9Top: North Carolina, Georgia, Montana
Fire Opaluncommon17 spots · 5 regions · Mohs 5.5-6.5Top: New Jersey, Nevada, Idaho
Crystals & minerals
Naturally occurring crystalline solids with defined chemistry.
Quartzcommon483 spots · 56 regions · Mohs 7Top: North Carolina, Utah, Pennsylvania
Agatecommon398 spots · 48 regions · Mohs 6.5-7Top: Oregon, New Mexico, Texas
Jaspercommon363 spots · 46 regions · Mohs 6.5-7Top: Oregon, New Mexico, Utah
Chalcedonycommon286 spots · 43 regions · Mohs 6.5-7Top: Utah, Oregon, Wyoming
Pyritecommon266 spots · 43 regions · Mohs 6-6.5Top: Utah, Missouri, North Carolina
Goldcommon240 spots · 26 regions · Mohs 2.5-3Top: Nevada, Utah, Montana
Calcitecommon221 spots · 42 regions · Mohs 3Top: Missouri, Utah, New Jersey
Garnetcommon192 spots · 35 regions · Mohs 6.5-7.5Top: North Carolina, Utah, GeorgiaSee the map →No ID guide
Galenacommon155 spots · 33 regions · Mohs 2.5Top: Utah, Missouri, New Jersey
Malachitecommon135 spots · 24 regions · Mohs 3.5-4Top: Utah, Missouri, New Jersey
Fluoritecommon133 spots · 32 regions · Mohs 4Top: Utah, New Mexico, Kentucky
Sphaleritecommon123 spots · 32 regions · Mohs 3.5-4Top: Missouri, Utah, Tennessee
Berylcommon117 spots · 25 regions · Mohs 7.5-8Top: North Carolina, Maine, Georgia
Chalcopyritecommon117 spots · 29 regions · Mohs 3.5-4Top: Utah, Missouri, New Mexico
Baritecommon103 spots · 24 regions · Mohs 3-3.5Top: Utah, Missouri, Oklahoma
Coppercommon99 spots · 22 regions · Mohs 2.5-3Top: Nevada, Utah, Arizona
Chertcommon95 spots · 28 regions · Mohs 6.5-7Top: Florida, New Mexico, Missouri
Azuritecommon89 spots · 17 regions · Mohs 3.5-4Top: Utah, Missouri, Pennsylvania
Tourmalinecommon87 spots · 29 regions · Mohs 7-7.5Top: North Carolina, Georgia, Utah
Silveruncommon83 spots · 13 regions · Mohs 2.5-3Top: Nevada, Utah, Montana
Smoky Quartzcommon83 spots · 28 regions · Mohs 7Top: North Carolina, Colorado, Maine
Hematitecommon81 spots · 27 regions · Mohs 5.5-6.5Top: Utah, Missouri, North Carolina
Epidotecommon79 spots · 29 regions · Mohs 6-7Top: North Carolina, Virginia, New Jersey
Limonitecommon70 spots · 20 regions · Mohs 4-5.5Top: Utah, North Carolina, Iowa
Magnetitecommon70 spots · 20 regions · Mohs 5.5-6.5Top: Utah, North Carolina, Pennsylvania
Feldsparcommon67 spots · 22 regions · Mohs 6Top: Maine, North Carolina, VirginiaSee the map →No ID guide
Apatitecommon63 spots · 22 regions · Mohs 5Top: Utah, New Jersey, North Carolina
Marcasitecommon61 spots · 17 regions · Mohs 6-6.5Top: Missouri, Indiana, Wisconsin
Cerussitecommon60 spots · 16 regions · Mohs 3-3.5Top: Utah, Missouri, New Mexico
Staurolitecommon60 spots · 19 regions · Mohs 7-7.5Top: North Carolina, Georgia, New Hampshire
Gypsumcommon58 spots · 17 regions · Mohs 2Top: Utah, Wyoming, Missouri
Kyanitecommon58 spots · 14 regions · Mohs 4.5-7Top: North Carolina, Georgia, Wisconsin- DolomiteDolomitecommon57 spots · 20 regions · Mohs 3.5-4Top: Missouri, Tennessee, West VirginiaSee the map →No ID guide
Lake Superior Agatecommon54 spots · 7 regions · Mohs 6.5-7Top: Minnesota, Iowa, Wisconsin
Corundumcommon51 spots · 14 regions · Mohs 9Top: North Carolina, Georgia, Idaho
Opalcommon49 spots · 21 regions · Mohs 5.5-6.5Top: Utah, Idaho, Nevada
Serpentinecommon49 spots · 17 regions · Mohs 2.5-5.5Top: Maryland, California, New Jersey
Carneliancommon46 spots · 19 regions · Mohs 6.5-7Top: Washington, Oregon, North Carolina
Moss Agatecommon41 spots · 21 regions · Mohs 6.5-7Top: Kansas, Wyoming, Iowa
Rutilecommon41 spots · 9 regions · Mohs 6-6.5Top: North Carolina, Virginia, Utah
Topazcommon41 spots · 17 regions · Mohs 8Top: Colorado, Utah, New Hampshire
Leadrare40 spots · 5 regions · Mohs 1.5Top: Nevada, Idaho, UtahSee the map →No ID guide
Albitecommon37 spots · 14 regions · Mohs 6-6.5Top: New Jersey, Maine, Utah
Chrysocollacommon36 spots · 16 regions · Mohs 2-4Top: New Mexico, Utah, Arizona
Goethitecommon36 spots · 17 regions · Mohs 5-5.5Top: Missouri, New Jersey, Utah
Muscovitecommon36 spots · 17 regions · Mohs 2.5-3Top: Maine, Georgia, North Carolina
Smithsonitecommon36 spots · 16 regions · Mohs 4-4.5Top: Missouri, Wisconsin, Tennessee
Micacommon35 spots · 14 regions · Mohs 2-3Top: North Carolina, Georgia, MaineSee the map →No ID guide
Celestitecommon34 spots · 11 regions · Mohs 3-3.5Top: Tennessee, Ohio, Indiana
Zirconcommon34 spots · 16 regions · Mohs 7.5Top: Utah, Colorado, South Carolina
Chalcocitecommon33 spots · 13 regions · Mohs 2.5-3Top: Utah, New Mexico, Connecticut
Bornitecommon32 spots · 14 regions · Mohs 3Top: Utah, New Jersey, Wisconsin
Sideritecommon32 spots · 16 regions · Mohs 3.5-4Top: New Jersey, Utah, Indiana
Actinolitecommon31 spots · 14 regions · Mohs 5.5-6Top: North Carolina, Utah, Vermont
Pyrolusitecommon31 spots · 8 regions · Mohs 6-6.5Top: Utah, California, Idaho
Cupritecommon30 spots · 11 regions · Mohs 3.5-4Top: Utah, Missouri, New Jersey
Diopsidecommon30 spots · 16 regions · Mohs 5.5-6.5Top: Utah, New York, Vermont
Biotitecommon29 spots · 13 regions · Mohs 2.5-3Top: Utah, Maine, Georgia
Chloritecommon29 spots · 14 regions · Mohs 2-2.5Top: Utah, Pennsylvania, Wisconsin
Banded Agatecommon27 spots · 14 regions · Mohs 6.5-7Top: New Jersey, Georgia, CaliforniaSee the map →No ID guide
Aragonitecommon25 spots · 12 regions · Mohs 3.5-4Top: Missouri, Utah, Indiana
Selenitecommon25 spots · 15 regions · Mohs 2Top: Utah, North Dakota, Oklahoma
Arsenopyritecommon24 spots · 15 regions · Mohs 5.5-6Top: Idaho, Montana, South Dakota
Carnotitecommon24 spots · 2 regions · Mohs 2Top: Utah, PennsylvaniaSee the map →No ID guide
Zincrare24 spots · 8 regions · Mohs 2.5Top: Nevada, Arkansas, IdahoSee the map →No ID guide
Almandine Garnetcommon23 spots · 10 regions · Mohs 7-7.5Top: Maine, North Carolina, IdahoSee the map →No ID guide
Anhydritecommon23 spots · 2 regions · Mohs 3.5Top: Utah, Wyoming
Platinumrare23 spots · 5 regions · Mohs 4-4.5Top: Nevada, North Carolina, Oregon
Prehnitecommon23 spots · 10 regions · Mohs 6-6.5Top: New Jersey, Connecticut, Massachusetts
Amazonitecommon21 spots · 12 regions · Mohs 6Top: Colorado, Virginia, North Carolina
Rhodochrositeuncommon20 spots · 8 regions · Mohs 3.5-4Top: Utah, California, North Carolina
Datolitecommon19 spots · 7 regions · Mohs 5-5.5Top: New Jersey, Massachusetts, California
Manganeserare19 spots · 10 regions · Mohs 2Top: Nevada, North Carolina, MinnesotaSee the map →No ID guide
Pyrrhotitecommon19 spots · 12 regions · Mohs 3.5-4.5Top: Vermont, Idaho, Maine
Scheelitecommon19 spots · 7 regions · Mohs 4.5-5Top: Utah, Montana, North CarolinaSee the map →No ID guide
Halitecommon18 spots · 6 regions · Mohs 2.5Top: Utah, Nevada, California
Ironrare18 spots · 8 regions · Mohs 4-5Top: Minnesota, Nevada, GeorgiaSee the map →No ID guide
Jadecommon18 spots · 6 regions · Mohs 6-7Top: California, Wyoming, Nevada
Sillimanitecommon18 spots · 10 regions · Mohs 6.5-7.5Top: Georgia, South Carolina, Alabama
Chromitecommon17 spots · 8 regions · Mohs 5.5Top: California, Maryland, North Carolina
Common Opalcommon17 spots · 8 regions · Mohs 5.5-6.5Top: New Jersey, Nevada, North Carolina
Turquoisecommon17 spots · 6 regions · Mohs 5-6Top: Nevada, New Mexico, Texas
Flintcommon16 spots · 9 regions · Mohs 7Top: Ohio, Nevada, Florida
Hornblendecommon16 spots · 11 regions · Mohs 5-6Top: North Carolina, Utah, Vermont
Lepidolitecommon16 spots · 11 regions · Mohs 2.5-3Top: California, North Carolina, South Dakota
Autunitecommon15 spots · 7 regions · Mohs 2-2.5Top: Utah, North Carolina, Maine
Molybdenitecommon15 spots · 7 regions · Mohs 1-1.5Top: Utah, Maine, New Mexico
Rhodonitecommon15 spots · 9 regions · Mohs 5.5-6.5Top: California, Idaho, Massachusetts
Thundereggscommon15 spots · 4 regions · Mohs 6.5-7Top: Oregon, Arizona, California
Fossils
Petrified, agatized, and mineralized remains.
Petrified Woodcommon169 spots · 31 regions · Mohs 6.5-7Top: Texas, Oregon, Washington
Fossilscommon89 spots · 30 regions · Mohs 3-7Top: Nebraska, Missouri, FloridaSee the map →No ID guide
Opalized Woodcommon54 spots · 15 regions · Mohs 5.5-6.5Top: Nebraska, Washington, Idaho
Agatized Woodcommon53 spots · 12 regions · Mohs 6.5-7Top: Texas, Nebraska, New Mexico
Silicified Woodcommon41 spots · 18 regions · Mohs 6.5-7Top: Wyoming, North Dakota, Montana
Ambercommon24 spots · 9 regions · Mohs 2-2.5Top: New Jersey, Maryland, New Mexico
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.
The full map lives in the app
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