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 721–829 of 829 brown rocks (page 7 of 7).
- No imageRinneiteraremineral · Mohs 3colorless, rose red, violet
Rockcastle Conglomeratecommonsedimentary · Mohs 6-7gray, white, tan
Rodolicoiteraremineral · Mohs 5brown, red brown
Römeriteuncommonmineral · Mohs 3-3.5yellow, brown, violet brown
Röntgenite-(Ce)raremineral · Mohs 4.5yellow, brown
Ruiziteraremineral · Mohs ~5orange, brown- No imageRuthenarseniteraremineral · Mohs 6-6.5brown, brownish gray, reddish gray
Salammoniacuncommonmineral · Mohs 1-2white, colorless, grayish- No imageSandstone With Calcite Veincommonsedimentary · Mohs 3-7tan, brown, red
Santabarbaraiteraremineral · Mohs 2.5brown, light brown
Sassoliteuncommonmineral · Mohs 1white, gray, yellow- No imageSavannah River Agatecommonmineral · Mohs 6.5-7red, orange, yellow
- No imageScacchiteraremineral · Mohs 2colorless, rose red, brown
Schneebergiteraremineral · Mohs 4-4.5brown, beige
Schneiderhöhniteraremineral · Mohs ~3brown, black
Schooneriteraremineral · Mohs ~4bronze, brown, yellow brown
Schreibersiteraremineral · Mohs 6.5-7brass yellow, bronze, brown
Schülleriteraremineral · Mohs 3-4brown- No imageSedoviteraremineral · Mohs 3brown, reddish brown
Semenovite-(Ce)raremineral · Mohs 3.5-4brown, orange-brown, gray
Sigismunditeraremineral · Mohs 4yellow-brown, brown, dark brown
Sigloiteraremineral · Mohs 3brown, light brown, light yellow- No imageSilesiaiteraremineral · Mohs 6.5-7yellow, brown, greenish
Siliceous Oolitecommonsedimentary · Mohs 6.5-7white, gray, tan
Silicified Agatecommonmineral · Mohs 6.5-7multicolored, white, gray
Silicified Conodontuncommonfossil · Mohs 7amber, brown, white
Silicified Coralcommonfossil · Mohs 6.5-7white, gray, brown
Silicified Cycad Wooduncommonfossil · Mohs 6.5-7brown, tan, white
Silicified Fossilcommonfossil · Mohs 6.5-7brown, red, yellow
Silicified Mastodon Tuskrarefossil · Mohs 6.5-7white, cream, tan
Silicified Oolitecommonfossil · Mohs 6.5-7white, gray, brown
Silicified Palm Woodcommonfossil · Mohs 6.5-7brown, tan, black
Silicified Pine Coneuncommonfossil · Mohs 6.5-7brown, tan, gray
Sinhaliteraremineral · Mohs 6.5-7yellow, brown, brown pink- No imageSmirnovskiteraremineral · Mohs 4-5yellow, brown
Soboleviteraremineral · Mohs ~4.5-5brown- No imageSphenisciditeraremineral · Mohs 1-1.5brown
Spherocobaltiteraremineral · Mohs 4deep rose-red, red, may be surficially altered
Spherulitic Chertcommonmineral · Mohs 6.5-7white, gray, tan
Spongecommonfossil · Mohs 3-5white, gray, brown
Steacyiteraremineral · Mohs 5brown, yellow green
Stefanweissiteraremineral · Mohs 4.5brown, reddish brown, dark brownish red
Stelleriteuncommonmineral · Mohs 4.5white, pink, salmon orange
Stetefeldtiteraremineral · Mohs 3.5-4.5brown, black, yellowish
Stibiconitecommonmineral · Mohs 5.5-7brown, gray, lemon white
Stibiocolumbiteraremineral · Mohs 5.5brown, brownish yellow, greenish yellow
Stibiotantaliteraremineral · Mohs 5.5yellow, brown, greenish yellow
Stilbite-Cacommonmineral · Mohs 3.5-4white, red, yellow
Stilbite-Nacommonmineral · Mohs 3.5-4white, red, yellow
Stolziteuncommonmineral · Mohs 2.5-3reddish brown, yellowish brown, brown
Stottiteraremineral · Mohs 4.5brown, colorless, green
Stromatoporoidcommonfossil · Mohs 3-5tan, brown, gray- No imageStrontioruiziteraremineral · Mohs 5-5.5orange, brown
Sweetwater Agatecommonmineral · Mohs 6.5-7clear, white, gray
Switzeriteraremineral · Mohs 2pink, brown
Synchysite-(Ce)uncommonmineral · Mohs 4.5brown, gray, grayish yellow- No imageTabbyiteuncommonmineral · Mohs 2-3black, brown
Tantalite-(Mn)uncommonmineral · Mohs 6-6.5black, brown
Tantalowodginiteraremineral · Mohs 5.5brown- No imageTarbagataiteraremineral · Mohs 3brown, pale golden brown
Tarbuttiteraremineral · Mohs 3.5-4colorless, brown, green
Teredo Petrified Woodcommonfossil · Mohs 6.5-7brown, tan, gray
Terlinguaiteraremineral · Mohs 2.5yellow, greenish yellow, brown
Tetraferrianniteuncommonmineral · Mohs 2.5-3brown, brownish black- No imageTetraferriphlogopiteuncommonmineral · Mohs 2.5-3brown, dark brown, yellowish-brown
- No imageTexas Bouquet Agatecommonmineral · Mohs 6.5-7white, pink, red
Thalénite-(Y)raremineral · Mohs 6-6.5pink, brownish green, brown- No imageThalliumpharmacosideriteraremineral · Mohs 2.5yellow, yellowish-green, brown
Therasiaiteraremineral · Mohs 1.5-2brown, dark brown
Thermaerogeniteraremineral · Mohs ~7brown, yellow-brown, red-brown
Thomsonite Noduleuncommonmineral · Mohs 5-5.5white, pink, green
Thorbastnäsiteraremineral · Mohs 4-4.5brown- No imageThoreauliteraremineral · Mohs 6brown, yellowish, yellow brown
Thoriumraremineral · Mohs 6.5-7lead-gray, black, brown
Thorogummiteraremineral · Mohs 5.5brown, greenish gray, buff
Thortveititeraremineral · Mohs 6-7grayish green, brown, grayish black- No imageTolbachiteraremineral · Mohs 2brown, golden brown
Trigoniteraremineral · Mohs 2-3yellow, brown, yellow brown
Trilobite Fossilcommonfossil · Mohs 3-5black, brown, gray
Tripliteraremineral · Mohs 5-5.5brown, dark brown, salmon pink- No imageTurkestaniteraremineral · Mohs 5.5-6apple green, dark green, brown
Turritella Agatecommonfossil · Mohs 6.5-7brown, tan, gray
Ushkoviteraremineral · Mohs 3.5brown, light yellow, orange- No imageUsoviteraremineral · Mohs 3.5brown, dark brown, yellowish brown
- No imageVanadiocarpholiteraremineral · Mohs 5-5.5pale straw yellow, brown
Vauqueliniteraremineral · Mohs 2.5-3green, brown, brownish green
Vertebrate Fossilcommonfossil · Mohs 3-6brown, tan, black
Volcanic Ashcommonigneousgray, brown, black
Wakefieldite-(La)raremineral · Mohs ~4light pink, brown
Warwickiteraremineral · Mohs 3.5-4black, brown
Weddelliteraremineral · Mohs ~4colorless, tan, white- No imageWelshiteraremineral · Mohs 6brown, reddish black, orange brown
Whetstonecommonsedimentary · Mohs 5-7gray, white, brown
Whitmoreiteraremineral · Mohs 3brown, greenish brown, light yellow brown
Wildenaueriteraremineral · Mohs 4.5yellow, brown
Wöhleriteraremineral · Mohs 6-6.5yellow, dark yellow, gray
Wollastonitecommonmineral · Mohs 4.5-5white, colorless, brown
Woodruffiteraremineral · Mohs 4.5brown, iron black, black brown- No imageWurtziliteraremineral · Mohs 3-4black, brown
- No imageWuyanzhiiteraremineral · Mohs 3-4red, orange, brown
Xanthoconiteraremineral · Mohs 2-3dark crimson red, dark orange, brown
Xenotime-(Y)uncommonmineral · Mohs 4-5yellowish brown, greenish brown, gray- No imageYazganiteraremineral · Mohs 5brown, brownish black
- No imageŻabińskiiteraremineral · Mohs ~5brown
Zeolitecommonmineral · Mohs 3.5-5.5white, colorless, yellow
Zinclipscombiteraremineral · Mohs 5dark green, brown
Zinconigerite-2N1Sraremineral · Mohs 8-9brown, reddish brown- No imageZinconigerite-6N6Sraremineral · Mohs 8-9brown, reddish-brown
Zirconoliteraremineral · Mohs 6.5black, brown
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