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 241–360 of 829 brown rocks (page 3 of 7).
Silicified Ferncommonfossil · Mohs 6.5-7brown, black, gray
Silicified Lignitecommonfossil · Mohs 6.5-7brown, black, gray
Silicified Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Sillimanitecommonmineral · Mohs 6.5-7.5white, colorless, gray
Siltstonecommonsedimentary · Mohs 3-4gray, red, brown
Skarncommonmetamorphic · Mohs 5-7green, brown, black
Slatecommonmetamorphic · Mohs 2.5-4gray, black, green
Smithsonitecommonmineral · Mohs 4-4.5white, gray, green
Smoky Quartzcommonmineral · Mohs 7brown, gray, black
Snakeskin Agatecommonmineral · Mohs 6.5-7white, gray, tan
Soapstonecommonmetamorphic · Mohs 1gray, green, white
Spessartineuncommonmineral · Mohs 7-7.5orange, red-orange, red
Sphaleritecommonmineral · Mohs 3.5-4yellow, brown, black
Spheneuncommongemstone · Mohs 5-5.5yellow, green, brown
Spinelcommonmineral · Mohs 7.5-8red, blue, green
Sponge Fossilcommonfossil · Mohs 2.5-7gray, white, tan
Sputnik Aragonitecommonmineral · Mohs 3.5-4brown, tan, creamy white
Starfish Fossiluncommonfossilgray, brown, tan
Staurolitecommonmineral · Mohs 7-7.5reddish-brown, brown, brownish-black
Staurolite Crosscommonmineral · Mohs 7-7.5brown, reddish-brown, yellowish-brown
Steatitecommonmineral · Mohs 1gray, green, white
Stilbitecommonmineral · Mohs 3.5-4white, colorless, yellow
Stony Meteoriterareigneous · Mohs 5-7gray, brown, black
Stony-Iron Meteoriterareigneous · Mohs 5-6brown, metallic, yellow
Sueviteuncommonigneous · Mohs 5-6gray, brown, greenish
Sunstoneuncommongemstone · Mohs 6-6.5orange, red, gold
Tabulate Coralcommonfossil · Mohs 5-7tan, brown, gray
Tektiteuncommonigneous · Mohs 5.5-6.5black, brown, olive green
Thomsoniteuncommonmineral · Mohs 5-5.5white, pink, green
Thundereggcommonmineral · Mohs 6.5-7multicolored, brown, gray
Tiger's Eyecommonmineral · Mohs 7golden-yellow, brown, reddish-brown
Titaniteuncommonmineral · Mohs 5-5.5yellow, brown, green
Topazcommonmineral · Mohs 8yellow, brown, colorless
Travertinecommonsedimentary · Mohs 3-4white, tan, cream
Tremolitecommonmineral · Mohs 5-6white, gray, green
Trilobitecommonfossilbrown, gray, black
Tube Agatecommonmineral · Mohs 6.5-7white, gray, blue
Tufacommonsedimentary · Mohs 3white, gray, yellow
Tuffcommonigneous · Mohs 2-4white, gray, tan
Uviteuncommonmineral · Mohs 7.5brown, green, yellow
Vanadiniteuncommonmineral · Mohs 2.5-3red, orange, brown
Vesuvianitecommonmineral · Mohs 6-7green, brown, yellow
Wavelliteuncommonmineral · Mohs 3.5-4white, yellow, green
Welo Opaluncommongemstone · Mohs 5.5-6.5white, yellow, orange
Witheriteuncommonmineral · Mohs 3-3.5white, gray, yellow
Wonderstonecommonsedimentary · Mohs 6.5-7red, yellow, brown
Wonderstone Rhyolitecommonigneous · Mohs 5.5-6.5brown, tan, yellow
Wood Opalcommonfossil · Mohs 5.5-6.5brown, tan, gray
Wulfeniteuncommonmineral · Mohs 2.75-3orange, yellow, red
Yowah Nutuncommonmineral · Mohs 5.5-6.5brown, red, green
Zirconcommonmineral · Mohs 7.5brown, red, yellow
Zoisitecommonmineral · Mohs 6-7gray, green, pink- No imageAcmonidesiteraremineral · Mohs 3brown
Aenigmatiteuncommonmineral · Mohs 5.5black, brown
Aeschynite-(Ce)raremineral · Mohs 5-6black, brown, brownish black
Aeschynite-(Nd)raremineral · Mohs 5-6brown
Aeschynite-(Y)raremineral · Mohs 5-6black, brownish black, brown
Agate Nodulecommonmineral · Mohs 6.5-7banded, white, gray
Agatized Algaecommonfossil · Mohs 6.5-7brown, red, tan
Agatized Clamcommonfossil · Mohs 6.5-7white, gray, brown- No imageAgatized Fern Buduncommonfossil · Mohs 6.5-7brown, tan, gray
Agatized Fossilcommonfossil · Mohs 6.5-7brown, red, yellow
Agatized Fossil Shellcommonfossil · Mohs 6.5-7white, brown, red- No imageAgatized Limb Castuncommonfossil · Mohs 6.5-7brown, red, yellow
Agatized Palm Woodcommonfossil · Mohs 6.5-7brown, tan, gray
Akaganeiteuncommonmineral · Mohs 3-4brown, rusty brown- No imageAkaogiiteraremineral · Mohs 6black, brown
Akatoreiteraremineral · Mohs 6orange, brown
Åkermaniteuncommonmineral · Mohs 5-6colorless, grayish, green
Allaniteuncommonmineral · Mohs 5.5-6black, brown, reddish-brown
Allanite-(Ce)uncommonmineral · Mohs 5.5-6black, brown, reddish brown
Allanite-(La)raremineral · Mohs 6black, brown- No imageAllanite-(Y)raremineral · Mohs 5.5black, brown
Alleghanyiteraremineral · Mohs 5.5white, brown, bright pink
Allophanecommonmineral · Mohs 3white, green, blue
Alteriteraremineral · Mohs 3.5yellow, yellowish-brown, brown- No imageAluminocerite-(CeCa)raremineral · Mohs 5.5brown, pinkish-brown, reddish-brown
- No imageAluminomagnesiohulsiteraremineral · Mohs 3.5-4brown
Amphibolecommonmineral · Mohs 5-6black, dark green, brown
Ancylite-(Ce)uncommonmineral · Mohs 4-4.5brown, brown red, colorless
Andradite Garnetcommonmineral · Mohs 6.5-7.5brown, green, yellow
Andrianoviteraremineral · Mohs 5yellow, brown
Ardealiteraremineral · Mohs 1-1.5light yellow, brown
Argentojarositeuncommonmineral · Mohs 3.5-4.5yellow, brown, yellow brown
Arrowheadcommonfossil · Mohs 6.5-7white, gray, brown
Asselborniteraremineral · Mohs 3brown, lemon yellow
Austiniteuncommonmineral · Mohs 4-4.5colorless, brown, green
Axinite-(Fe)uncommonmineral · Mohs 6.5-7brown, purplish blue, gray
Axinite-(Mg)raremineral · Mohs 6.5-7brown, purplish blue, gray
Axinite-(Mn)uncommonmineral · Mohs 6.5-7brown, colorless, yellowish- No imageBadakhshanite-(Y)raremineral · Mohs 6.5-7.5black, brown
Baddeleyiteuncommonmineral · Mohs 6.5brown, brownish black, colorless
Banded Agatecommonmineral · Mohs 6.5-7white, gray, blue
Banded Opalcommonmineral · Mohs 5.5-6.5white, gray, brown
Bariopharmacosideriteraremineral · Mohs 3brown
Bauxitecommonsedimentary · Mohs 1-3red, brown, tan
Baveniteraremineral · Mohs 5.5-6white, green, pink
Beach Glasssedimentarygreen, brown, white
Belkoviteraremineral · Mohs 6-7brown
Bementiteraremineral · Mohs 4.5-6brown, gray, yellow
Benauiteraremineral · Mohs ~3.5yellow, brown
Beudantiteuncommonmineral · Mohs 3.5-4.5brown, green, yellow
Biphosphammiteraremineral · Mohs 1-2brown, colorless, gray white- No imageBiraite-(Ce)raremineral · Mohs 5brown
Bismocliteraremineral · Mohs 2-2.5brown, colorless, gray
Bismutiteuncommonmineral · Mohs 2.5-3.5yellow, brown, brownish yellow
Blakeiteraremineral · Mohs 2-3brown, dark reddish brown- No imageBobtrailliteraremineral · Mohs 5.5gray, pale green, brown
Bogdanoviteraremineral · Mohs 4-4.5brown, bronze brown, bluish black- No imageBorisenkoiteraremineral · Mohs ~4.5red-brown, golden-brown, brown
Brain Coralcommonfossil · Mohs 3-4white, tan, brown
Branneriteraremineral · Mohs 4.5-5.5black, brown, brown green- No imageBrauneriteraremineral · Mohs 3.5-4brown, yellowish-brown
Britholite-(Ce)raremineral · Mohs 5brown, greenish brown, yellow
Bronzitecommonmineral · Mohs 5.5-6brown, bronze, greenish-brown
Brown Jaspercommonmineral · Mohs 6.5-7brown, tan, chocolate- No imageBrown Sapphirecommongemstone · Mohs 9brown, golden brown, reddish brown
Brown Zirconcommongemstone · Mohs 7.5brown, reddish-brown, yellowish-brown
Bruneau Canyon Jasperuncommonmineral · Mohs 6.5-7brown, cream, tan- No imageBussyite-(Y)raremineral · Mohs ~4brown
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