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 721–840 of 1070 black rocks (page 7 of 9).
Obsidiancommonigneous · Mohs 5-6black, dark green, mahogany- No imageObsidian Nodulescommonmineral · Mohs 5-5.5black, brown, gray
Olmsteaditeraremineral · Mohs 3-4dark brown, black- No imageOmariniiteraremineral · Mohs 3.5black, dark gray
Onyxcommonmineral · Mohs 6.5-7black, white, banded
Opalcommonmineral · Mohs 5.5-6.5white, black, colorless
Opalized Woodcommonfossil · Mohs 5.5-6.5brown, red, yellow
Örebroiteraremineral · Mohs 5-6black, brownish-black- No imageOrickiteraremineral · Mohs 2.5dark brown, black, gray
- No imageOrthobranneriteraremineral · Mohs 4-5black, brownish-black
Orthocerascommonfossil · Mohs 3-4black, brown, gray
Orthopinakioliteraremineral · Mohs 6black, brownish-black- No imageOscarkempffiteraremineral · Mohs 2.5-3lead-gray, black
Ottreliteuncommonmineral · Mohs 6.5dark green, black, gray-green
Ottréliteuncommonmineral · Mohs 6.5dark gray, dark green, black
Oxo-magnesio-hastingsiteraremineral · Mohs 5-6black, dark green, brown- No imageOxy-draviteraremineral · Mohs 7dark brown, reddish-brown, black
- No imageOxy-schorlraremineral · Mohs 7black, brownish-black
Oxy-vanadium-draviteraremineral · Mohs 7dark brown, black, dark yellow-brown
Oxycalciopyrochloreraremineral · Mohs 5-5.5brown, yellowish-brown, black- No imageOxyvaniteraremineral · Mohs 5.5-6black, brownish black
Oyoniteraremineral · Mohs 3-4black, dark brown
Ozokeriteuncommonmineral · Mohs 1yellow, brown, black
Pallasiterareigneous · Mohs 5-6yellow, green, brown- No imagePanguiteraremineral · Mohs nulldeep reddish-brown, black
Papikeiteraremineral · Mohs 5-6black, dark brown
Paramelaconiteraremineral · Mohs 3black, brownish-black
Paramontroseiteraremineral · Mohs 4-5black- No imagePararsenolampriteraremineral · Mohs 1.5-2gray, silvery-gray, black
Pargasiteuncommonmineral · Mohs 5-6dark green, brown, black- No imageParkinsoniteraremineral · Mohs 3.5dark brownish-black, black
- No imagePaseroiteraremineral · Mohs 5-6dark brown, black
Patróniteraremineral · Mohs 2dark red, reddish-brown, black- No imagePauloabibiteraremineral · Mohs 3.5dark brown, black
- No imagePaulscherreriteraremineral · Mohs 5-6brown, yellow-brown, black
Pearceiteuncommonmineral · Mohs 3black, dark gray
Pearlscommonfossil · Mohs 2.5-4.5white, cream, pink
Pellouxiteraremineral · Mohs 2-3black- No imagePerbøeite-(Ce)raremineral · Mohs 6-7dark brown, black
- No imagePerbøeite-(La)raremineral · Mohs 6-7black, dark brown
Perettiite-(Y)raremineral · Mohs 6-7dark brown, black
Permingeatiteraremineral · Mohs 3.5-4dark gray, black
Perovskiteuncommonmineral · Mohs 5.5black, brown, yellow
Perrierite-(Ce)raremineral · Mohs 5.5black, dark brown, reddish brown
Perrierite-(La)raremineral · Mohs 5-6black, dark brown, reddish brown
Petrified Cycaduncommonfossil · Mohs 6.5-7brown, tan, black
Petrified Dinosaur Boneuncommonfossil · Mohs 6.5-7red, brown, yellow
Petrified Palmcommonfossil · Mohs 6.5-7brown, tan, black
Petrified Palm Woodcommonfossil · Mohs 6.5-7tan, brown, black
Petrified Woodcommonfossil · Mohs 6.5-7brown, red, yellow- No imagePetroviciteraremineral · Mohs 3steel-gray, black
- No imagePetrovskaiteraremineral · Mohs 2lead-gray, black
- No imagePetrukiteraremineral · Mohs 4dark brown, black
- No imagePetscheckiteraremineral · Mohs 3-4black, brownish black
Phacopscommonfossil · Mohs 3-5brown, gray, black
Philippinitecommonmineral · Mohs 5.5-6.5black, dark brown- No imagePhilrothiteraremineral · Mohs 3lead-gray, black
Phosphoritecommonsedimentary · Mohs 3-5gray, brown, black
Phyllitecommonmetamorphic · Mohs 1-2silvery-gray, greenish-gray, black
Picture Jaspercommonmineral · Mohs 6.5-7brown, tan, cream
Piemontiteuncommonmineral · Mohs 6-6.5red, reddish-brown, pink
Pierrotiteraremineral · Mohs 2.5lead-gray, black
Pigeonitecommonmineral · Mohs 5.5-6brown, brownish-green, black- No imagePilawite-(Y)raremineral · Mohs 6.5-7black, brownish-black
Pillaiteraremineral · Mohs 3lead-gray, black
Pinakioliteraremineral · Mohs 6black, dark brown
Pirquitasiteraremineral · Mohs 3.5-4black, gray- No imagePísekite-(Y)raremineral · Mohs 5-6black, brown, yellowish-brown
Pizgrischiteraremineral · Mohs 3.5lead-gray, black
Plagioniteraremineral · Mohs 2.5lead-gray, black
Plant Fossilcommonfossilbrown, black, gray
Plattneriteraremineral · Mohs 5-5.5black, brownish-black
Plumboferriteraremineral · Mohs 5-6black, gray- No imagePlumbostanniteraremineral · Mohs 4black, dark gray
- No imagePlumositeuncommonmineral · Mohs 2.5lead-gray, black
- No imagePolkoviciteraremineral · Mohs 3.5-4black
- No imagePolloneiteraremineral · Mohs 3.5lead-gray, black
- No imagePolyakovite-(Ce)raremineral · Mohs 5-6black, brown
Polybasiteuncommonmineral · Mohs 2-3black, iron-black
Poppy Jaspercommonmineral · Mohs 6.5-7red, yellow, brown- No imagePotassic-arfvedsoniteraremineral · Mohs 5-6dark green, black, blue-black
- No imagePotassic-chloro-hastingsiteraremineral · Mohs 5-6black, dark green, dark brown
- No imagePotassic-chloro-pargasiteraremineral · Mohs 5-6black, dark brown, dark green
- No imagePotassic-ferri-leakeiteraremineral · Mohs 6dark green, black, brownish-black
- No imagePotassic-ferro-ferri-sadanagaiteraremineral · Mohs 5-6black, dark brown, dark green
Potassic-ferro-ferri-taramiteraremineral · Mohs 5-6black, dark green
Potassic-ferro-pargasiteraremineral · Mohs 5-6black, dark green, brown- No imagePotassic-ferro-sadanagaiteraremineral · Mohs 6black, dark brown, dark green
- No imagePotassic-ferro-taramiteraremineral · Mohs 5-6black, dark green
Potassic-fluoro-hastingsiteraremineral · Mohs 5-6black, dark green, brownish black
Potassic-fluoro-pargasiteraremineral · Mohs 6dark green, brownish-green, black
Potassic-hastingsiteuncommonmineral · Mohs 5-6black, dark green
Potassic-jeanlouisiteraremineral · Mohs 5-6dark brown, black
Potassic-magnesio-arfvedsoniteraremineral · Mohs 5-6black, dark green, dark blue- No imagePotassic-magnesio-fluoro-arfvedsoniteraremineral · Mohs 5-6black, dark green, dark blue
Potassic-magnesio-hastingsiteraremineral · Mohs 5-6black, dark green, dark brown
Potassic-mangani-leakeiteraremineral · Mohs 6dark green, black- No imagePotassic-pargasiteraremineral · Mohs 5-6dark green, black, brownish green
- No imagePotassic-sadanagaiteraremineral · Mohs 5-6black, dark brown, dark green
Povondraiteraremineral · Mohs 6.5-7black, dark brown
Precious Opalraregemstone · Mohs 5.5-6.5white, black, blue
Prideriteraremineral · Mohs 6black, brownish-black
Protochabournéiteraremineral · Mohs 2.5black, lead-gray
Prouditeraremineral · Mohs 2-3lead-gray, black
Pseudobrookiteuncommonmineral · Mohs 6dark brown, black
Pseudorutileuncommonmineral · Mohs 5-6reddish-brown, brown, black
Psilomelanecommonmineral · Mohs 5-6black, bluish-black, gray- No imagePumpellyite-(Fe3+)uncommonmineral · Mohs 5.5-6green, brown, black
Pumpellyite-(Mg)uncommonmineral · Mohs 5.5green, blue-green, brown
Purpuriteuncommonmineral · Mohs 4-4.5deep purple, violet, brown
Pyrargyriteuncommonmineral · Mohs 2.5dark red, grayish red, black
Pyrolusitecommonmineral · Mohs 6-6.5black, bluish-black, dark gray
Pyroxenecommonmineral · Mohs 5-6black, dark green, brown
Pyroxenitecommonigneous · Mohs 5-7dark green, brown, black
Qandiliteraremineral · Mohs 6black, dark brown- No imageQingsongiteraremineral · Mohs 9.5-10dark green, black, brownish
- No imageQitianlingiteraremineral · Mohs 5-6black, brownish black
Quartzcommonmineral · Mohs 7colorless, white, gray
Quenseliteraremineral · Mohs 2.5black, dark gray- No imageRaberiteraremineral · Mohs 2.5black
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