Reddish-brown rocks & minerals
Reddish-brown rocks and minerals share this color due to specific trace elements, chemical bonds, or structural defects. Color alone rarely settles an identification — use it with hardness, luster, and streak.
Showing 241–309 of 309 reddish-brown rocks (page 3 of 3).
Red Quartzitecommonmetamorphic · Mohs 7red, reddish-brown, pinkish-red- No imageRed Rutilecommonmineral · Mohs 6-6.5red, reddish-brown
Renieriteraremineral · Mohs 4.5bronze, reddish-brown
Retzian-(Ce)raremineral · Mohs 4reddish brown, brown- No imageRetzian-(La)raremineral · Mohs 4brown, reddish-brown
- No imageRetzian-(Nd)raremineral · Mohs 4brown, reddish-brown
Rhyolitecommonigneous · Mohs 6-7gray, pink, tan
Ribbeiteraremineral · Mohs 6reddish-brown, orange-pink, yellow-brown
Rilanditeraremineral · Mohs 3-4dark red, reddish-brown
Rittmanniteraremineral · Mohs 4.5yellow, brown, reddish-brown- No imageRomarchiteraremineral · Mohs 2black, dark brown, reddish-brown
Römeriteuncommonmineral · Mohs 3yellow, brown, reddish-brown- No imageRose Rockscommonmineral · Mohs 3-3.5reddish-brown, red, tan
Rutilecommonmineral · Mohs 6-6.5reddish-brown, red, black- No imageSarcopsideraremineral · Mohs 4brown, reddish-brown, violet
Sardcommonmineral · Mohs 6.5-7brownish-red, reddish-brown, orange-brown
Schäferiteraremineral · Mohs 3.5yellow, brownish-yellow, reddish-brown
Schalleriteraremineral · Mohs 4-5brown, yellowish-brown, reddish-brown
Schülleriteraremineral · Mohs 6.5-7.5yellow, brown, reddish-brown
Schwartzembergiteraremineral · Mohs 2.5dark red, reddish brown, brown
Scoriacommonigneous · Mohs 5-6black, dark gray, reddish brown
Shcherbakoviteraremineral · Mohs 5-6reddish-brown, brown, yellow-brown- No imageStar Garnetuncommonmineral · Mohs 7-7.5reddish-brown, dark red, black
Staurolitecommonmineral · Mohs 7-7.5reddish-brown, brown, brownish-black
Staurolite Crosscommonmineral · Mohs 7-7.5brown, reddish-brown, yellowish-brown- No imageStrontioperloffiteraremineral · Mohs 4dark brown, reddish-brown
Sursassiteraremineral · Mohs 6.5-7reddish-brown, brown
Synadelphiteraremineral · Mohs 4.5brown, reddish-brown, yellowish-brown
Tantaliteuncommonmineral · Mohs 6black, brownish-black, reddish-brown
Tantalite-(Mn)uncommonmineral · Mohs 6black, brown, reddish-brown
Tapiolite-(Mn)raremineral · Mohs 6-6.5black, reddish-brown, brown
Taramelliteraremineral · Mohs 5.5dark brown, reddish brown, brownish black
Tephroiteuncommonmineral · Mohs 6reddish-brown, gray, olive-green- No imageTetraferriphlogopiteuncommonmineral · Mohs 2.5-3brown, dark brown, yellowish-brown
Thorianiteraremineral · Mohs 6.5-7black, brownish-black, reddish-brown- No imageThorosteenstrupineraremineral · Mohs 4.5-5brown, yellow, reddish-brown
Tiger's Eyecommonmineral · Mohs 7golden-yellow, brown, reddish-brown
Tinzeniteraremineral · Mohs 6.5-7yellow, orange, brown- No imageTranquillityiteraremineral · Mohs 5-6dark brown, reddish brown, opaque black
Traskiteraremineral · Mohs 4-5brown, reddish-brown
Tripliteraremineral · Mohs 4-5.5brown, reddish-brown, orange-brown
Triploiditeraremineral · Mohs 4.5-5yellow, yellow-brown, pink
Tritomite-(Y)raremineral · Mohs 5.5brown, dark brown, reddish brown
Tsumcoriteraremineral · Mohs 4.5yellow, brown, orange- No imageTundrite-(Nd)raremineral · Mohs 4-5yellow, yellowish-brown, reddish-brown
Tuperssuatsiaiteraremineral · Mohs 2brown, yellowish-brown, reddish-brown- No imageTurtmanniteraremineral · Mohs 4-5yellow, brown, reddish-brown
- No imageVästmanlandite-(Ce)raremineral · Mohs 6-7brown, reddish-brown
Vincienniteraremineral · Mohs 3.5pinkish-brown, reddish-brown
Wallkilldellite-(Fe)raremineral · Mohs 3red, brown, reddish-brown
Warwickiteraremineral · Mohs 3-4black, dark brown, reddish-brown
Welded Tuffcommonigneous · Mohs 3-6gray, tan, pink- No imageWelshiteraremineral · Mohs 5dark brown, black, reddish-brown
- No imageWernerbauriteraremineral · Mohs 3-4yellow, brown, reddish-brown
Wodginiteraremineral · Mohs 5-6dark brown, reddish brown, black
Wolfeiteraremineral · Mohs 4-5brown, reddish-brown
Wolframiteuncommonmineral · Mohs 4-4.5brown, black, reddish-brown
Wurtziteuncommonmineral · Mohs 3.5-4brown, yellowish-brown, reddish-brown
Xenotimeuncommonmineral · Mohs 4-5yellowish-brown, reddish-brown, yellow
Xenotime-(Y)uncommonmineral · Mohs 4-5yellowish-brown, brown, reddish-brown- No imageXenotime-(Yb)raremineral · Mohs 4-5yellowish-brown, reddish-brown, colorless
Yeatmaniteraremineral · Mohs 4reddish-brown, brown
Zincoberauniteraremineral · Mohs 3.5-4yellow, brownish-yellow, reddish-brown- No imageZincohögbomite-2N2Sraremineral · Mohs 7-8dark brown, black, reddish brown
Zinconigerite-2N1Sraremineral · Mohs 8-9brown, reddish brown- No imageZinconigerite-6N6Sraremineral · Mohs 8-9brown, reddish-brown
- No imageZincostauroliteraremineral · Mohs 7-7.5dark brown, reddish brown, yellowish brown
- No imageZircophylliteraremineral · Mohs 3-4brown, golden-brown, reddish-brown
Zirkeliteraremineral · Mohs 5.5-6.5black, dark brown, reddish brown
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