Where to Find Aragonite in Missouri

Missouri has 6 mapped collecting spots that report aragonite, spread across 6 counties. 5 of the spots are on land mapped as publicly accessible.

Open the full map

Every aragonite spot we track in Missouri

Best spotFabius RiverLewis County, MissouriPublic access · Geode, Calcite, Malachite +4
FredericktownMadison County, MissouriPublic access · Aragonite, Azurite, Calcite +10
JoplinJasper County, MissouriPermission required · Apatite, Aragonite, Azurite +10
Finger Lakes State ParkBoone County, MissouriPublic access · Aragonite, Copiapite, Gypsum +4
Kansas CityJackson County, MissouriPublic access · Aragonite, Barite, Calcite +3
Sugar CreekBuchanan County, MissouriPublic access · Septarian Nodule, Aragonite, Calcite +3

Standout aragonite spots in Missouri

Hand-picked from the full list above, with the reason each one earns a trip.

Fabius River
Lewis County
The Fabius River drainage in Lewis County cuts through the Warsaw Formation on the southern margin of the Keokuk geode belt, releasing geodes lined with quartz, calcite, aragonite, and trace sulfides into the river gravels.

Best counties for aragonite in Missouri

Ranked by the number of mapped aragonite spots. County links open the full rockhounding page for that county.

Boone County1 spot
Buchanan County1 spot
Jackson County1 spot
Jasper County1 spot
Lewis County1 spot
Madison County1 spot

Before you go

Read the aragonite identification guide so you know what a keeper looks like in the field: Aragonite in the encyclopedia.

Aragonite in Missouri FAQ

Where can you find aragonite in Missouri?+

The mapped spots concentrate in Boone County, Buchanan County, and Jackson County. Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.

How many aragonite spots are mapped in Missouri?+

6 spots across 6 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.

Is it legal to collect aragonite in Missouri?+

Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 5 of the 6 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.