Where to Find Dolomite in Missouri

Missouri dolomite is the host rock of the state's lead-zinc ores and a famous specimen mineral in its own right. The Sweetwater mine in Reynolds County produces ferroan dolomite as pink-to-tan curved rhombs ("saddle dolomite") up to several centimeters, often blanketing massive galena and calcite. Brushy Creek and Buick add white and gray dolomite on the same dump material. Tri-State chat piles around Joplin carry pink dolomite crusts with marcasite and sphalerite. The pink, curved-face dolomite from Sweetwater is among the most distinctive Missouri specimens and is widely traded in the mineral market.

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Every dolomite spot we track in Missouri

FredericktownMadison County, MissouriPublic access · Aragonite, Azurite, Calcite +10
JoplinJasper County, MissouriPermission required · Apatite, Aragonite, Azurite +10
Cole CountyCole County, MissouriPublic access · Barite, Calcite, Cerussite +9
SteelvilleCrawford County, MissouriPublic access · Allophane, Amethyst, Azurite +9
Eldon & EttervilleMoniteau County, MissouriPublic access · Barite, Calcite, Cerussite +8
Iron MountainSaint Francois County, MissouriPublic access · Yellow Garnet, Apatite, Barite +8
SpringfieldGreene County, MissouriPublic access · Barite, Calcite, Cerussite +7
PalmerWashington County, MissouriPublic access · Anglesite, Calcite, Cerussite +6
Alice Mine near ElijahHowell County, MissouriPublic access · Dolomite, Greenockite, Pyrite +3
ArnoldJefferson County, MissouriPublic access · Geode, Dolomite, Marcasite +3
EminenceShannon County, MissouriPublic access · Calcite, Chalcopyrite, Cuprite +3
Kansas CityJackson County, MissouriPublic access · Aragonite, Barite, Calcite +3
Saint Charles QuarrySaint Charles County, MissouriPublic access · Yellow Calcite, Green Calcite, Chert Nodule +3
Danville QuarryMontgomery County, MissouriPublic access · Calcite, Dolomite, Millerite +1

Best counties for dolomite in Missouri

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

Cole County1 spot
Crawford County1 spot
Greene County1 spot
Howell County1 spot
Jackson County1 spot
Jasper County1 spot
Jefferson County1 spot
Madison County1 spot
Moniteau County1 spot
Montgomery County1 spot
Saint Charles County1 spot
Saint Francois County1 spot
Shannon County1 spot
Washington County1 spot

Before you go

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

Dolomite in Missouri FAQ

Where can you find dolomite in Missouri?+

The mapped spots concentrate in Cole County, Crawford County, and Greene County. Known collecting areas include Sweetwater mine (Reynolds County), Brushy Creek mine (Iron County), and Joplin chat field (Jasper County). Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.

How many dolomite spots are mapped in Missouri?+

14 spots across 14 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 dolomite 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. 13 of the 14 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find dolomite

More minerals to hunt in Missouri

Hunt dolomite in Missouri with the map in your pocket

RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.