Black rocks & minerals
Black rocks and minerals are usually rich in iron, manganese, or carbon. Hardness and luster — metallic, glassy, dull, or sub-metallic — make the biggest difference in identification.
Showing 361–480 of 1070 black rocks (page 4 of 9).
Fetiasiteraremineral · Mohs 3-4dark brown, black
Fetteliteraremineral · Mohs 2.5dark red, black
Filipstaditeraremineral · Mohs 5-6black
Fish Fossilcommonfossil · Mohs 3-5brown, tan, gray
Fletcheriteraremineral · Mohs 4.5black, gray
Flintcommonmineral · Mohs 7gray, black, brown- No imageFlint Nodulescommonmineral · Mohs 7gray, black, brown
- No imageFlorensoviteraremineral · Mohs 5-6dark gray, black
Fluor-schorluncommonmineral · Mohs 7-7.5black, brownish-black
Fluor-uviteuncommonmineral · Mohs 7brown, yellow-brown, dark green- No imageFluorcalciomicroliteraremineral · Mohs 5-5.5yellow, brown, reddish-brown
Fluorcalciopyrochloreraremineral · Mohs 5-5.5brown, yellowish-brown, reddish-brown- No imageFluorcarmoite-(BaNa)raremineral · Mohs 5-6dark brown, dark green, black
Fluoro-taramiteraremineral · Mohs 5-6black, dark green
Foititeraremineral · Mohs 7dark blue, black, violet-blue
Foorditeraremineral · Mohs 6-6.5black, brownish-black
Formanite-(Y)raremineral · Mohs 5.5-6.5yellow, brown, reddish-brown- No imageFort Payne Chertcommonmineral · Mohs 6.5-7white, gray, 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 Fernscommonfossil · Mohs 3-6black, brown, gray
- No imageFossilized Horse Bonescommonfossil · Mohs 3-6brown, tan, white
- No imageFossilized Quarrycommonfossilbrown, tan, gray
Fossilized Shark Teethcommonfossil · Mohs 3-5black, gray, brown- No imageFossilized Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Fossilscommonfossil · Mohs 3-7brown, gray, white
Franckeiteraremineral · Mohs 2.5-3black, dark gray- No imageFrankhawthorneiteraremineral · Mohs 3-4dark green, black
- No imageFranklinfurnaceiteraremineral · Mohs 3dark brown, black
Frankliniteuncommonmineral · Mohs 5.5-6.5black, brownish-black
Freudenbergiteraremineral · Mohs 5-6brown, black
Fulguriteuncommonmineral · Mohs 6.5-7white, gray, tan
Furutobeiteraremineral · Mohs 2.5-3lead-gray, black
Gabbrocommonigneous · Mohs 6-7black, dark green, dark gray
Gadolinite-(Ce)raremineral · Mohs 6.5-7black, brownish-black, greenish-black
Gadolinite-(Y)raremineral · Mohs 6.5-7black, brownish-black, greenish-black
Gahniteuncommonmineral · Mohs 7.5-8dark green, blue-green, yellow
Galaxiteraremineral · Mohs 7.5black, brownish-black, reddish-brown
Gamagariteraremineral · Mohs 4dark brown, black
Garnetcommonmineral · Mohs 6.5-7.5red, green, yellow
Gastrolithsuncommonfossil · Mohs variablevariable, brown, gray
Gastropod Fossilcommonfossilbrown, gray, white
Gastropodscommonfossil · Mohs 3-5white, brown, gray
Gaudefroyiteraremineral · Mohs 5.5-6black, brownish-black
Geeriteraremineral · Mohs 1.5-2black, gray
Geikieliteraremineral · Mohs 5-6red, brownish-red, black
Gilsonitecommonmineral · Mohs 2-2.5black
Giraudite-(Zn)raremineral · Mohs 3-4gray, black- No imageGladkovskyiteraremineral · Mohs 3-3.5dark brown, black
Glaucophanecommonmineral · Mohs 6blue, blue-gray, lavender
Gneisscommonmetamorphic · Mohs 5-7white, gray, pink
Goethitecommonmineral · Mohs 5-5.5yellowish-brown, reddish-brown, black
Goldmaniteraremineral · Mohs 6.5-7dark green, brownish green, black
Goniatitecommonfossil · Mohs 3-4brown, gray, black
Gortdrumiteraremineral · Mohs 3.5black, brown
Graeseriteraremineral · Mohs 5.5-6black- No imageGrahamiteuncommonmineral · Mohs 2black
Gramaccioliite-(Y)raremineral · Mohs 5-6black
Granodioritecommonigneous · Mohs 6-7gray, white, black
Graphitecommonmineral · Mohs 1-2black, steel-gray- No imageGraţianiteraremineral · Mohs 3-3.5gray, black
- No imageGray Agatecommonmineral · Mohs 6.5-7gray, gray, white
- No imageGreen Marblecommonmetamorphic · Mohs 3-5green, dark green, white
Greigiteuncommonmineral · Mohs 4-4.5black, gray- No imageGrigorieviteraremineral · Mohs 5-6black, dark brown
Grimaldiiteraremineral · Mohs 3.5black, dark brown- No imageGrossmaniteraremineral · Mohs 6-7dark green, black
Groutiteraremineral · Mohs 5.5black, dark brown- No imageGuiteraremineral · Mohs 5-6black, brownish-black
Guyanaiteraremineral · Mohs 3-4dark green, black
Hagendorfiteraremineral · Mohs 3.5-4black, dark green, dark blue- No imageHaggertyiteraremineral · Mohs 6black
Häggiteraremineral · Mohs 3black, dark brown
Hakite-(Cd)raremineral · Mohs 3-4gray, black- No imageHakite-(Hg)raremineral · Mohs 3-4gray, black
Hakite-(Zn)raremineral · Mohs 3-4gray, black
Hammariteraremineral · Mohs 3.5lead-gray, black
Hanaueriteraremineral · Mohs 3.5-4yellow, brown, black
Hancockiteraremineral · Mohs 6-7reddish-brown, brown, black- No imageHarrisoniteraremineral · Mohs 3.5black, brownish black
Hashemiteraremetamorphic · Mohs 5-6dark brown, black, reddish-brown
Hastingsiteuncommonmineral · Mohs 5-6black, dark green, dark brown
Hatchiteraremineral · Mohs 3.5black, gray
Hausmanniteuncommonmineral · Mohs 5-5.5black, brownish-black- No imageHawthorneiteraremineral · Mohs 6black
Hedenbergitecommonmineral · Mohs 5.5-6dark green, black, brownish-green
Heideiteraremineral · Mohs 5-6black, dark gray
Hematitecommonmineral · Mohs 5.5-6.5steel-gray, black, reddish-brown
Hematophaniteraremineral · Mohs 3dark red, reddish-brown, black
Hemloiteraremineral · Mohs 6black- No imageHemusiteraremineral · Mohs 3.5dark gray, black
Hendekasartoriteraremineral · Mohs 3-3.5lead-gray, black
Hendersoniteraremineral · Mohs 2dark brown, black- No imageHenrymeyeriteraremineral · Mohs 6black
Hercyniteuncommonmineral · Mohs 7.5-8black, dark green- No imageHermannjahniteraremineral · Mohs 5-6deep green, black
Herzenbergiteraremineral · Mohs 2black, dark gray
Hetaeroliteuncommonmineral · Mohs 6black, dark brown
Heterogeniteuncommonmineral · Mohs 3-4black, brownish-black, reddish-brown
Heteromorphiteraremineral · Mohs 2.5-3lead-gray, black
Hibbingiteraremineral · Mohs 3dark brown, reddish brown, black
Hiboniteraremineral · Mohs 7.5-8black, brown, reddish-brown- No imageHingganite-(Nd)raremineral · Mohs 6.5-7yellowish-brown, brown, black
Hisingeriteuncommonmineral · Mohs 3black, brown, greenish-black
Hodrušiteraremineral · Mohs 3.5dark gray, lead gray, black
Høgtuvaiteraremineral · Mohs 5-6black, brown
Hollanditeuncommonmineral · Mohs 6black, dark gray- No imageHomiliteraremineral · Mohs 5black, brown, greenish-black
- No imageHongheiteraremineral · Mohs 6.5dark brown, black, reddish-brown
Hornblendecommonmineral · Mohs 5-6black, dark green, brownish-green
Hornfelscommonmetamorphic · Mohs 5-7gray, dark gray, black
Horsetail Fossilcommonfossil · Mohs 3-5gray, brown, black- No imageHowardevansiteraremineral · Mohs 5.5black
Howieiteraremineral · Mohs 5dark brown, black, dark green
Hübneriteuncommonmineral · Mohs 4-4.5reddish-brown, brown, black
Hulsiteraremineral · Mohs 3.5black, brownish-black- No imageHutcheoniteraremineral · Mohs 7black, brown
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