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 1–120 of 912 black rocks and minerals.
Acanthitecommonmineral · Mohs 2-2.5lead-gray, black, gray
Achondriterareigneous · Mohs 5-7gray, brown, black
Actinolitecommonmineral · Mohs 5-6green, dark green, blackish-green
Aegirinecommonmineral · Mohs 6green, dark green, black
Agatecommonmineral · Mohs 6.5-7white, gray, blue
Agatized Cycad Wooduncommonfossil · Mohs 6.5-7brown, tan, gray
Agatized Dinosaur Boneuncommonfossil · Mohs 6.5-7red, brown, tan
Agatized Picture Woodcommonfossil · Mohs 6.5-7brown, tan, black
Agatized Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Almandinecommonmineral · Mohs 7-7.5dark red, reddish-brown, brownish-black
Ammonitecommonfossil · Mohs 3-4brown, gray, black
Amphibolitecommonmetamorphic · Mohs 5-6black, dark green, dark gray
Amygdaloidal Basaltcommonigneous · Mohs 5-6gray, black, green
Anataseuncommonmineral · Mohs 5.5-6black, brown, blue
Andraditecommonmineral · Mohs 6.5-7black, brown, green
Anorthositecommonigneous · Mohs 6white, gray, bluish-gray
Antigoritecommonmineral · Mohs 2.5-3.5green, yellow-green, brown
Apache Tearcommonmineral · Mohs 5-5.5black, dark brown
Argentitecommonmineral · Mohs 2-2.5lead-gray, black
Augen Gneisscommonmetamorphic · Mohs 5-7gray, pink, white
Augitecommonmineral · Mohs 5.5-6black, dark green, brownish green
Australitecommonmineral · Mohs 5-6black, dark brown, olive green
Banded Iron Formationcommonsedimentary · Mohs 5-7red, gray, black
Basaltcommonigneous · Mohs 6black, dark gray, dark green
Belemnitecommonfossil · Mohs 3-4brown, black, gray
Big Sur Jadeuncommonmineral · Mohs 6-6.5green, blue-green, olive
Biotitecommonmineral · Mohs 2.5-3black, dark brown, dark green
Black Chertcommonmineral · Mohs 6.5-7black, dark gray
Black Flintcommonmineral · Mohs 7black, dark gray
Black Opalraregemstone · Mohs 5.5-6.5black, dark gray
Black Tourmalinecommonmineral · Mohs 7-7.5black, brownish-black
Boji Stonescommonmineral · Mohs 3.5-4brown, gray, black
Boulder Opaluncommongemstone · Mohs 5.5-6.5black, white, gray
Brecciated Jaspercommonmineral · Mohs 6.5-7red, brown, yellow
Brochantitecommonmineral · Mohs 3.5-4emerald-green, dark-green, bright-green
Brookiteuncommonmineral · Mohs 5.5-6reddish-brown, brown, black
Bumblebee Jasperuncommonmineral · Mohs 6-7yellow, orange, black
Calymenecommonfossilgray, brown, tan
Cannel Coalcommonsedimentary · Mohs 2-3black, brownish-black
Cassiteritecommonmineral · Mohs 6-7black, brown, reddish-brown
Chalcocitecommonmineral · Mohs 2.5-3lead-gray, black, tarnish-blue
Chertcommonmineral · Mohs 6.5-7white, gray, brown
Chert Nodulecommonmineral · Mohs 6.5-7gray, brown, black
Chondritecommonigneous · Mohs 5-6gray, brown, black
Chromitecommonmineral · Mohs 5.5black, brownish-black
Claystonecommonsedimentary · Mohs 1-2gray, brown, red
Coalcommonsedimentary · Mohs 0.5-2.5black, brown
Cobaltiteuncommonmineral · Mohs 5.5silver-white, reddish-white, gray
Concretioncommonsedimentary · Mohs 3-7brown, gray, tan
Concretion With Fossilcommonfossil · Mohs 3-5brown, gray, tan
Covellitecommonmineral · Mohs 1.5-2indigo blue, iridescent, light blue
Crinoidcommonfossil · Mohs 3-4gray, white, tan
Crocodile Toothcommonfossil · Mohs 3-5brown, tan, black
Crystal Opalraregemstone · Mohs 5.5-6.5white, black, colorless
Cupritecommonmineral · Mohs 3.5-4red, dark red, cochineal red
Dark Gray Flintcommonmineral · Mohs 6.5-7dark gray, black, brown
Dendritic Agatecommonmineral · Mohs 6.5-7white, colorless, gray
Diabasecommonigneous · Mohs 6-7dark gray, black, greenish-gray
Diamondcommongemstone · Mohs 10colorless, yellow, brown
Dinosaur Bonecommonfossil · Mohs 5.5-7brown, red, black
Dinosaur Coproliteuncommonfossil · Mohs 3-5brown, tan, black
Dinosaur Toothcommonfossil · Mohs 3-5brown, black, gray
Diopsidecommonmineral · Mohs 5.5-6.5white, gray, green
Dioritecommonigneous · Mohs 6-7gray, black, white
Dravitecommonmineral · Mohs 7brown, dark brown, yellowish brown
Echinoidcommonfossil · Mohs 3-4white, gray, tan
Elrathiacommonfossilbrown, gray, black
Epidotecommonmineral · Mohs 6-7pistachio green, yellowish-green, dark green
Eurypteriduncommonfossilbrown, black, tan
Eye Agatecommonmineral · Mohs 6.5-7white, gray, brown
Fairy Stonecommonmineral · Mohs 7-7.5brown, reddish-brown, black
Fayaliteuncommonmineral · Mohs 6.5-7yellow, yellow-green, brown
Fern Fossilcommonfossilblack, brown, gray
Fish Fossilcommonfossil · Mohs 3-5brown, tan, gray
Flintcommonmineral · Mohs 7gray, black, brown
Flint Nodulecommonmineral · Mohs 7gray, black, brown
Fossil Insectuncommonfossil · Mohs 1-3brown, amber, black
Fossil Leafcommonfossil · Mohs 2-4brown, black, gray
Fossil Spiderrarefossilamber, brown, black
Fossilized Ferncommonfossil · Mohs 3-6black, brown, gray
Fossilized Shark Toothcommonfossil · Mohs 3-5black, gray, brown
Fossilized Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Fulguriteuncommonmineral · Mohs 6.5-7white, gray, tan
Gabbrocommonigneous · Mohs 6-7black, dark green, dark gray
Garnetcommonmineral · Mohs 6.5-7.5red, green, yellow
Gastropod Fossilcommonfossilbrown, gray, white
Glaucophanecommonmineral · Mohs 6blue, blue-gray, lavender
Gneisscommonmetamorphic · Mohs 5-7white, gray, pink
Goethitecommonmineral · Mohs 5-5.5yellowish-brown, reddish-brown, black
Goniatitecommonfossil · Mohs 3-4brown, gray, black
Granodioritecommonigneous · Mohs 6-7gray, white, black
Graphitecommonmineral · Mohs 1-2black, steel-gray, iron black
Hematitecommonmineral · Mohs 5-6steel-gray, black, reddish-brown
Heulanditecommonmineral · Mohs 3.5-4white, colorless, yellow
Hornblendecommonmineral · Mohs 5-6black, dark green, brownish-green
Hornfelscommonmetamorphic · Mohs 5-7gray, dark gray, black
Horsetail Fossilcommonfossil · Mohs 3-5gray, brown, black
Hypersthenecommonmineral · Mohs 5.5-6black, dark brown, dark green
Ignimbritecommonigneous · Mohs 5-7gray, white, pink
Ilmenitecommonmineral · Mohs 5-6black, iron-black, brownish-black
Impactiteuncommonsedimentary · Mohs 5-7black, brown, green
Indochinitecommonmineral · Mohs 5.5-6.5black, brown
Iron Meteoriteuncommonigneous · Mohs 4-5metallic gray, brown, black
Iron Orecommonmineral · Mohs 5-6.5red, black, brown
Jadecommonmineral · Mohs 6-7green, white, lavender
Jaspercommonmineral · Mohs 6.5-7red, yellow, brown
Jetcommonfossil · Mohs 2.5-4black, dark brown
Kambaba Jaspercommonfossil · Mohs 6.5-7green, black
Knightiacommonfossiltan, brown, gray
Komatiiterareigneous · Mohs 5-6dark gray, greenish-gray, black
Kyanitecommonmineral · Mohs 5.5-7blue, colorless, white
Larvikitecommonigneous · Mohs 6gray, blue, black
Leopard Skin Jaspercommonmineral · Mohs 6.5-7brown, tan, black
Limestonecommonsedimentary · Mohs 3white, gray, tan
Limonitecommonmineral · Mohs 4-5.5yellow, brown, reddish-brown
Magnesio-riebeckiteuncommonmineral · Mohs 5-6blue, black
Magnetitecommonmineral · Mohs 5.5-6.5black, iron-black, grayish black
Mahogany Obsidiancommonmineral · Mohs 5-6red-brown, black
Mammoth Toothcommonfossil · Mohs 2.5-3tan, brown, cream
Manganitecommonmineral · Mohs 4dark gray, black, steel-gray
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