Brown rocks & minerals
Brown rocks and minerals are extremely common — iron oxidation alone produces a huge range of browns and tans. Look at hardness, luster, and host setting to narrow it down.
Showing 361–480 of 1338 brown rocks (page 4 of 12).
Feldsparcommonmineral · Mohs 6white, gray, pink- No imageFengchengiteraremineral · Mohs 6.5-7.5yellow, brown, reddish-brown
- No imageFergusonite-(Ce)raremineral · Mohs 5.5-6.5brown, black, yellow
Fern Fossilcommonfossilblack, brown, gray
Feroxyhyteraremineral · Mohs 2red-brown, brown
Ferri-mottanaite-(Ce)raremineral · Mohs 6yellow, brown, reddish-brown
Ferri-taramiteraremineral · Mohs 5-6black, dark green, brown- No imageFerri-winchiteraremineral · Mohs 5-6blue, violet, brown
Ferriakasakaite-(Ce)raremineral · Mohs 6-6.5black, brown
Ferriallanite-(Ce)raremineral · Mohs 6-6.5black, brown
Ferrihydritecommonmineral · Mohs 2-3reddish-brown, brown, dark-brown
Ferrilotharmeyeriteraremineral · Mohs 4-5yellow, yellowish-orange, brown- No imageFerriperbøeite-(La)raremineral · Mohs 6-7black, brown
Ferripyrophylliteraremineral · Mohs 1-2yellow, brown, greenish-yellow- No imageFerrirockbridgeiteraremineral · Mohs 4.5dark green, blackish green, brown
- No imageFerrisepioliteraremineral · Mohs 2yellow, brown, greenish
Ferrisymplesiteraremineral · Mohs 2-3dark brown, brownish black, brown
Ferro-anthophylliteuncommonmineral · Mohs 5.5-6brown, greenish-brown, dark gray- No imageFerro-fluoro-edeniteraremineral · Mohs 5-6brown, dark green, black
Ferro-richteriteraremineral · Mohs 5-6brown, yellow-brown, greenish-brown- No imageFerroalluauditeraremineral · Mohs 4-5yellow, brown, green
Ferroaluminoceladoniteraremineral · Mohs 2green, bluish-green, brown- No imageFerrobobfergusoniteraremineral · Mohs 4.5-5brown, dark brown
Ferrocarpholiteraremineral · Mohs 5straw-yellow, yellowish-green, brown- No imageFerrokinoshitaliteraremineral · Mohs 2.5-3yellow, brown, dark brown
- No imageFerrolaueiteraremineral · Mohs 3brown, orange-brown
Ferronigerite-2N1Sraremineral · Mohs 8-9brown, black, yellowish-brown- No imageFerronigerite-6N6Sraremineral · Mohs 8-9brown, reddish-brown
- No imageFerronordite-(La)raremineral · Mohs 5-5.5yellow, brown, colorless
Ferrosaponiteraremineral · Mohs 2green, yellowish-green, brown
Ferrosiliteraremineral · Mohs 5-6brown, dark brown, black
Ferrotychiteraremineral · Mohs 4yellow, brown, colorless- No imageFerrovalleriiteraremineral · Mohs 1bronze, black, brown
Ferrowodginiteraremineral · Mohs 5.5-6black, brown
Fersmaniteraremineral · Mohs 5.5brown, yellowish-brown, reddish-brown
Fersmiteraremineral · Mohs 4-4.5black, brownish-black, brown
Feruviteraremineral · Mohs 7-7.5black, brown- No imageFibrolitecommonmineral · Mohs 6.5-7.5white, colorless, gray
Finger Coralcommonfossil · Mohs 3-4white, tan, brown
Fire Agateuncommongemstone · Mohs 6.5-7red, brown, orange
Fish Fossilcommonfossil · Mohs 3-5brown, tan, gray- No imageFlamiteraremineral · Mohs 3.5yellow, brown, colorless
- No imageFlinkiteraremineral · Mohs 5brown, brownish-red, yellowish-brown
Flintcommonmineral · Mohs 7gray, black, brown- No imageFlint Nodulescommonmineral · Mohs 7gray, black, brown
- No imageFlinteiteraremineral · Mohs 3.5white, yellow, brown
Florencite-(Ce)uncommonmineral · Mohs 5-6yellow, brown, pink
Florencite-(La)raremineral · Mohs 5-6white, colorless, yellow
Florencite-(Nd)raremineral · Mohs 5-6pink, brown, yellow- No imageFlorencite-(Sm)raremineral · Mohs 5-6yellow, brown, colorless
- No imageFlower Jaspercommonmineral · Mohs 6.5-7pink, white, red
Fluocerite-(Ce)raremineral · Mohs 4.5-5yellow, reddish-yellow, brown- No imageFluocerite-(La)raremineral · Mohs 4.5-5red, yellow, brown
- No imageFluor-buergeriteraremineral · Mohs 7brown, dark brown
Fluor-draviteraremineral · Mohs 7-7.5brown, yellow-brown, dark brown
Fluor-liddicoatiteraremineral · Mohs 7-7.5multicolored, pink, green
Fluor-uviteuncommonmineral · Mohs 7brown, yellow-brown, dark green- No imageFluoranniteraremineral · Mohs 2.5-3brown, greenish-brown, yellowish-brown
Fluorapatitecommonmineral · Mohs 5colorless, white, yellow- No imageFluorbritholite-(Ce)raremineral · Mohs 5-5.5brown, reddish-brown, yellow
- No imageFluorbritholite-(Y)raremineral · Mohs 5-5.5yellow, brown, reddish-brown
- No imageFluorcalciobritholiteraremineral · Mohs 5brown, yellow, gray
- No imageFluorcalciomicroliteraremineral · Mohs 5-5.5yellow, brown, reddish-brown
Fluorcalciopyrochloreraremineral · Mohs 5-5.5brown, yellowish-brown, reddish-brown
Fluorcalcioroméiteraremineral · Mohs 5.5yellow, brown, yellowish-brown- No imageFluorescent Villiaumiteraremineral · Mohs 2-2.5red, pink, carmine
Fluorlamprophylliteraremineral · Mohs 3brown, yellow-brown, golden-brown- No imageFluornatrocoulselliteraremineral · Mohs 5-6pink, reddish, brown
Fluornatromicroliteraremineral · Mohs 5-5.5yellow, brown, orange
Fluornatropyrochloreraremineral · Mohs 5-5.5yellow, brown, reddish-brown- No imageFluoro-cannilloiteraremineral · Mohs 5-6brown, yellow-brown
Fluoro-edeniteraremineral · Mohs 5-6white, gray, pale green- No imageFluoro-pargasiteraremineral · Mohs 5-6dark green, brownish green, brown
Fluoro-richteriteraremineral · Mohs 5-6white, brown, yellow- No imageFluorokinoshitaliteraremineral · Mohs 2.5-3yellow, brown, white
Fluorophlogopiteuncommonmineral · Mohs 2.5-3colorless, white, yellow- No imageFluorotetraferriphlogopiteraremineral · Mohs 2.5-3brown, yellowish-brown, dark brown
- No imageFluorvesuvianiteraremineral · Mohs 6.5brown, yellow-brown, greenish-brown
Fogoite-(Y)raremineral · Mohs 5-6yellow, brown, colorless
Formanite-(Y)raremineral · Mohs 5.5-6.5yellow, brown, reddish-brown
Fornaciteraremineral · Mohs 3yellow, yellow-green, brown- No imageFort Payne Chertcommonmineral · Mohs 6.5-7white, gray, brown
Fossil Coralcommonfossil · Mohs 6.5-7white, tan, brown
Fossil Insectuncommonfossil · Mohs 1-3brown, amber, black
Fossil Leafcommonfossil · Mohs 2-4brown, black, gray
Fossil Leaf Printscommonfossil · Mohs 2-4brown, tan, black
Fossil Plantscommonfossilbrown, black, gray
Fossil Spiderrarefossilamber, brown, black- No imageFossilized Coralcommonfossil · Mohs 6.5-7white, gray, brown
- No imageFossilized Fernscommonfossil · Mohs 3-6black, brown, gray
- No imageFossilized Horse Bonescommonfossil · Mohs 3-6brown, tan, white
Fossilized Ivoryuncommonfossil · Mohs 2.5-3white, cream, yellow- No imageFossilized Quarrycommonfossilbrown, tan, gray
Fossilized Shark Teethcommonfossil · Mohs 3-5black, gray, brown
Fossilized Shellscommonfossil · Mohs 3-5white, gray, brown- No imageFossilized Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Fossilscommonfossil · Mohs 3-7brown, gray, white
Francolitecommonmineral · Mohs 5white, gray, yellow
Fredrikssoniteraremineral · Mohs 6yellow, brown, orange-brown
Freudenbergiteraremineral · Mohs 5-6brown, black
Friedeliteraremineral · Mohs 4-5pink, brown, red
Frondeliteraremineral · Mohs 3.5-4yellow, brown, orange-brown
Fuenzalidaiteraremineral · Mohs 3.5yellow, brown
Fulguriteuncommonmineral · Mohs 6.5-7white, gray, tan
Gagarinite-(Y)raremineral · Mohs 4.5white, yellow, pink
Gahniteuncommonmineral · Mohs 7.5-8dark green, blue-green, yellow
Gaidonnayiteraremineral · Mohs 5white, yellow, brown- No imageGalgenbergite-(Ce)raremineral · Mohs 4-4.5yellow, brown, tan
- No imageGallobeudantiteraremineral · Mohs 3.5-4yellow, greenish-yellow, brown
Galloplumbogummiteraremineral · Mohs 4-5yellow, brown, white
Ganophylliteraremineral · Mohs 3-4brown, yellowish-brown
Garnetcommonmineral · Mohs 6.5-7.5red, green, yellow
Garnet Schistcommonmetamorphic · Mohs 3-7gray, brown, silver- No imageGasparite-(La)raremineral · Mohs 5yellow, brown, white
Gastrolithsuncommonfossil · Mohs variablevariable, brown, gray
Gastropod Fossilcommonfossilbrown, gray, white
Gastropodscommonfossil · Mohs 3-5white, brown, gray- No imageGatelite-(Ce)raremineral · Mohs 5.5brown, yellow-brown
- No imageGatewayitecommonmineral · Mohs 7white, gray, brown
Gayiteraremineral · Mohs 4yellowish-brown, brown, reddish-brown
Identify your find on the go
Open RockHoundR to look up rock properties offline and find more like this near you.
