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 1–120 of 1338 brown rocks and minerals.
Abenakiite-(Ce)raremineral · Mohs 4yellow, brown, yellow-brown
Achondriterareigneous · Mohs 5-7gray, brown, black- No imageAdrianiteraremineral · Mohs 6.5-7.5red, brown, orange
Aegirinecommonmineral · Mohs 6green, dark green, black
Aeschynite-(Nd)raremineral · Mohs 5-6black, brown, reddish-brown
Aeschynite-(Y)raremineral · Mohs 5-6black, brown, yellowish-brown
Agatecommonmineral · Mohs 6.5-7white, gray, blue- No imageAgate Nodulescommonmineral · Mohs 6.5-7banded, white, gray
- No imageAgatized Algaecommonfossil · Mohs 6.5-7brown, red, tan
- No imageAgatized Clamscommonfossil · Mohs 6.5-7white, gray, brown
- No imageAgatized Coralcommonfossil · Mohs 6.5-7white, gray, pink
- No imageAgatized Cyad Woodcommonfossil · Mohs 6.5-7brown, red, white
- No imageAgatized Cycad Wooduncommonfossil · Mohs 6.5-7brown, tan, gray
Agatized Dinosaur Boneuncommonfossil · Mohs 6.5-7red, brown, tan- No imageAgatized Fern Budsuncommonfossil · Mohs 6.5-7brown, tan, gray
- No imageAgatized Fossil Shellscommonfossil · Mohs 6.5-7white, brown, red
Agatized Fossilscommonfossil · Mohs 6.5-7brown, red, yellow- No imageAgatized Limb Castsuncommonfossil · Mohs 6.5-7brown, red, yellow
- No imageAgatized Palm Woodcommonfossil · Mohs 6.5-7brown, tan, gray
- No imageAgatized Picture Woodcommonfossil · Mohs 6.5-7brown, tan, black
Agatized Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Akaganeiteuncommonmineral · Mohs 3-4reddish-brown, brown, yellowish-brown- No imageAkaogiiteraremineral · Mohs 6black, brown
Åkermaniteuncommonmineral · Mohs 5-6colorless, white, gray
Akrochorditeraremineral · Mohs 3.5reddish-brown, brown, yellowish-brown
Alibates Flintuncommonfossil · Mohs 6.5-7red, white, blue
Allactiteraremineral · Mohs 3-4dark red, reddish brown, brown
Allaniteuncommonmineral · Mohs 5.5-6black, brown, reddish-brown
Allanite-(Ce)uncommonmineral · Mohs 5.5-6.5black, brown, reddish-brown
Allanite-(La)raremineral · Mohs 5.5-6black, brown, reddish-brown
Allanite-(Nd)raremineral · Mohs 5.5-6black, brown, dark brown
Allanite-(Y)raremineral · Mohs 5.5-6black, brown, reddish-brown
Allanpringiteraremineral · Mohs 3.5yellowish-brown, brown
Allophanecommonmineral · Mohs 3white, blue, green- No imageAlluaiviteraremineral · Mohs 5-6yellow, brown, reddish-brown
Alluauditeuncommonmineral · Mohs 3.5yellow, brown, green- No imageAlnaperbøeite-(Ce)raremineral · Mohs 5-6brown, yellowish-brown
- No imageAlsakharovite-Znraremineral · Mohs 5yellow, brown
Alteriteraremineral · Mohs 3.5yellow, yellowish-brown, brown- No imageAluminocerite-(CeCa)raremineral · Mohs 5.5brown, pinkish-brown, reddish-brown
- No imageAluminomagnesiohulsiteraremineral · Mohs 3.5-4black, brown
Ambercommonfossil · Mohs 2-2.5yellow, orange, brown- No imageAmber Baritecommonfossil · Mohs 2-2.5yellow, orange, brown
Ammoniojarositeuncommonmineral · Mohs 2.5-3.5yellow, yellow-brown, brown- No imageAmmoniomagnesiovoltaiteraremineral · Mohs 2.5-3black, dark green, brown
- No imageAmmoniovoltaiteraremineral · Mohs 3black, dark green, brown
Ammonitescommonfossil · Mohs 3-4brown, gray, black
Amphibolecommonmineral · Mohs 5-6black, dark green, brown
Amygdaloidal Basaltcommonigneous · Mohs 5-6gray, black, green- No imageAnanditeraremineral · Mohs 2.5-3black, brown
Anataseuncommonmineral · Mohs 5.5-6black, brown, blue
Ancylite-(Ce)uncommonmineral · Mohs 4-4.5yellow, brown, reddish-brown- No imageAncylite-(La)raremineral · Mohs 4-4.5yellow, brown, colorless
Andalusitecommonmineral · Mohs 7.5reddish-brown, brown, pink
Andraditecommonmineral · Mohs 6.5-7.5black, brown, green
Andradite Garnetcommonmineral · Mohs 6.5-7.5brown, green, yellow
Andrianoviteraremineral · Mohs 5-6yellow, brown- No imageAndymcdonalditeraremineral · Mohs 4-4.5yellow, brown
Ankeritecommonmineral · Mohs 3.5-4white, yellow, brown
Anthophyllitecommonmineral · Mohs 5.5-6brown, gray, white
Antigoritecommonmineral · Mohs 2.5-3.5green, yellow-green, brown
Apatitecommonmineral · Mohs 5green, blue, yellow- No imageAraditeraremineral · Mohs 6-7reddish-brown, brown, black
Aragonitecommonmineral · Mohs 3.5-4white, colorless, yellow- No imageArangasiteraremineral · Mohs 3.5yellow, brown, white
Ardennite-(As)raremineral · Mohs 6-7yellow-brown, brown, red-brown
Ardennite-(V)raremineral · Mohs 6-7yellow, brown, reddish-brown
Arisite-(Ce)raremineral · Mohs 4yellow, brown- No imageArmbrusteriteraremineral · Mohs 3-4yellow, brown, greenish-brown
- No imageArrojadite-(KNa)raremineral · Mohs 4-5green, brown, yellowish-green
- No imageArrojadite-(PbFe)raremineral · Mohs 4-5green, brown, yellow-brown
- No imageArrojadite-(SrFe)raremineral · Mohs 4-5dark green, brownish green, brown
Arrowheadscommonfossil · Mohs 6.5-7white, gray, brown- No imageArsenbrackebuschiteraremineral · Mohs 4.5yellow, brownish-yellow, brown
Arseniosideriteuncommonmineral · Mohs 4-4.5yellow, brown, reddish-brown
Arsenoflorencite-(Ce)raremineral · Mohs 5-6yellow, brown, colorless- No imageArsenowagneriteraremineral · Mohs 5-5.5yellowish-brown, brown
Asbecasiteraremineral · Mohs 6yellow, yellow-brown, brown- No imageÅskagenite-(Nd)raremineral · Mohs 6.5black, brown
- No imageAspedamiteraremineral · Mohs 5.5-6brown, black
- No imageAspidoliteraremineral · Mohs 2.5colorless, pale yellow, brown
Astrophylliteuncommonmineral · Mohs 3bronze, golden-yellow, brown- No imageAtelisite-(Y)raremineral · Mohs 6-7yellow, brown, black
Atencioiteraremineral · Mohs 4yellow, brown, greenish-yellow
Attakoliteraremineral · Mohs 3.5-4yellow, brown, reddish-brown
Austiniteuncommonmineral · Mohs 4colorless, white, yellow
Aventurinecommongemstone · Mohs 6.5-7green, red, brown
Axiniteuncommonmineral · Mohs 6.5-7brown, violet-brown, plum-blue
Axinite-(Mg)raremineral · Mohs 6.5-7brown, violet, yellow
Axinite-(Mn)uncommonmineral · Mohs 6.5-7clove-brown, brown, yellow-brown
Baculitecommonfossil · Mohs 3-4brown, gray, beige- No imageBadakhshanite-(Y)raremineral · Mohs 6.5-7.5black, brown
Baddeleyiteuncommonmineral · Mohs 6.5black, brown, yellow
Bafertisiteraremineral · Mohs 3brown, yellowish-brown, reddish-brown
Balangeroiteraremineral · Mohs 3.5brown, reddish-brown
Banded Agatecommonmineral · Mohs 6.5-7white, gray, blue
Banded Iron Formationcommonsedimentary · Mohs 5-7red, gray, black- No imageBanded Opalcommonmineral · Mohs 5.5-6.5white, gray, brown
Bannisteriteraremineral · Mohs 4brown, pink, white
Baotiteraremineral · Mohs 5yellow, brown, orange-brown- No imageBario-orthojoaquiniteraremineral · Mohs 5.5brown, yellow-brown, tan
- No imageBarioperovskiteraremineral · Mohs 5.5black, brown
Bariopharmacosideriteraremineral · Mohs 2.5yellow, yellow-green, brown
Baritecommonmineral · Mohs 3-3.5colorless, white, yellow- No imageBarite Rosescommonmineral · Mohs 3-3.5brown, reddish-brown, tan
Barreriteraremineral · Mohs 3.5-4colorless, white, pink
Barytecommonmineral · Mohs 3-3.5white, colorless, yellow- No imageBarytolamprophylliteraremineral · Mohs 3-4brown, yellowish-brown, golden-brown
Basaltcommonigneous · Mohs 6black, dark gray, dark green
Bastnäsite-(Ce)uncommonmineral · Mohs 4-4.5yellow, reddish-brown, brown
Bastnäsite-(La)raremineral · Mohs 4-4.5yellow, reddish-brown, brown- No imageBastnäsite-(Nd)raremineral · Mohs 4-4.5yellow, brown, reddish-brown
Bastnäsite-(Y)raremineral · Mohs 4-4.5yellow, yellowish-brown, reddish-brown- No imageBatievaite-(Y)raremineral · Mohs 5-6yellow, yellow-brown, brown
Batisiteraremineral · Mohs 5yellow, brown, white
Bauxitecommonsedimentary · Mohs 1-3red, brown, tan
Belemnitecommonfossil · Mohs 3-4brown, black, gray
Belkoviteraremineral · Mohs 4.5-5brown, dark brown, black
Belovite-(Ce)raremineral · Mohs 5yellow, colorless, white
Bementiteraremineral · Mohs 6brown, yellowish-brown, reddish-brown
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