Mineral rocks & minerals
Minerals are naturally occurring inorganic solids with a defined chemical composition and crystalline structure. They are the building blocks of every rock you pick up in the field.
Showing 3961–4080 of 5834 minerals (page 34 of 49).
Omsiteraremineral · Mohs ~3amber-yellow, bright
Ondrušiteraremineral · Mohs ~2-3white, whitish green, gray-green- No imageOneilliteraremineral · Mohs 5-6yellowish brown
Onoratoiteraremineral · Mohs 3white- No imageOolitic Agatecommonmineral · Mohs 6.5-7white, gray, brown
Oosterboschiteraremineral · Mohs 4.5-5black
Opal-quartzcommonmineral · Mohs 6.5-7white, gray, brown- No imageOphiriteraremineral · Mohs ~2orange-brown
- No imageOppenheimeriteraremineral · Mohs 2.5pale greenish yellow
Orange Agatecommonmineral · Mohs 6.5-7orange, red-orange, yellow-orange
Orceliteraremineral · Mohs 3.5-4yellow white, pink bronze
Ordoñeziteraremineral · Mohs 6.5colorless, yellow green, light brown
Orecommonmineralvariable
Örebroiteraremineral · Mohs ~4dark brown- No imageOregon Jadecommonmineral · Mohs 6.5-7green, olive-green, dark green
Oregoniteraremineral · Mohs 5white, gray white- No imageOrganovaite-Mnraremineral · Mohs 5rose brown, pink, yellow brown
Organovaite-Znraremineral · Mohs 5pink, pinkish brown, white- No imageOrickiteraremineral · Mohs ~3.5brass yellow
Orientiteraremineral · Mohs 4.5-5brown, black- No imageOrlandiiteraremineral · Mohs 2colorless, white
- No imageOrloviteraremineral · Mohs 2-3colorless
Orlymaniteraremineral · Mohs 4-5dark brown
Orschalliteraremineral · Mohs ~4colorless- No imageOrthobranneriteraremineral · Mohs 5.5black, brownish green
- No imageOrthocuproplatinumraremineral · Mohs 4white, silver-white
- No imageOrthogersdorffiteraremineral · Mohs 5.5-6white, steel-gray, silver-white
- No imageOrthojoaquinite-(Ce)raremineral · Mohs 5-5.5yellow, light brown
- No imageOrthojoaquinite-(La)raremineral · Mohs ~5brown
- No imageOrthominasragriteraremineral · Mohs ~1bright blue, pale blue
Orthopinakioliteraremineral · Mohs 6black
Orthoserpieriteraremineral · Mohs 2pale blue green- No imageOrthowalpurgiteraremineral · Mohs 4.5pale yellow
- No imageOsakaiteraremineral · Mohs 1white, pale blue
Osarizawaiteraremineral · Mohs 3-4green- No imageOsarsiteraremineral · Mohs 6gray
- No imageOsborniteraremineral · Mohs 8-9golden yellow
- No imageOscarkempffiteraremineral · Mohs 3-3.5grayish black
- No imageOskarssoniteraremineral · Mohs 1-2white, grayish yellow
Osumiliteraremineral · Mohs 5-5.5black, dark blue, dark brown- No imageOsumilite-(Mg)raremineral · Mohs 5-6brown, green, dark blue
- No imageOswaldpeetersiteraremineral · Mohs 2-3canary yellow
Otaviteraremineral · Mohs 3.5-4white, yellow brown, reddish
Otjisumeiteraremineral · Mohs ~3colorless, white
Ottemanniteraremineral · Mohs ~2reddish gray
Ottensiteraremineral · Mohs 3.5reddish brown
Ottohahniteraremineral · Mohs ~2.5greenish yellow- No imageOttoiteraremineral · Mohs 3yellow
Ottréliteuncommonmineral · Mohs 6-7pistachio green
Otwayiteraremineral · Mohs 4bright green, green
Oulankaiteraremineral · Mohs 3.5-4rose, violet rose
Ourayiteraremineral · Mohs 2gray
Oursiniteraremineral · Mohs 3-3.5pale yellow
Ovamboiteraremineral · Mohs 3.5gray- No imageOveriteraremineral · Mohs 3.5-4colorless, light green
- No imageOwensiteraremineral · Mohs 3.5black
- No imageOwyhee Jaspercommonmineral · Mohs 6.5-7blue, brown, cream
- No imageOwyhee Thundereggcommonmineral · Mohs 6.5-7blue, purple, white
Owyheeiteuncommonmineral · Mohs 2.5lead gray, gray blue, yellowish
Oxammiteraremineral · Mohs 2.5colorless, yellowish white
Oxo-magnesio-hastingsiteraremineral · Mohs ~6brown- No imageOxo-mangani-leakeiteraremineral · Mohs 6red-orange
- No imageOxy-chromium-draviteraremineral · Mohs 7.5emerald-green
- No imageOxy-draviteraremineral · Mohs ~7dark red
- No imageOxy-schorlraremineral · Mohs 7greenish, brownish black
Oxy-vanadium-draviteraremineral · Mohs 7.5dark brown, black, dark yellow-brown- No imageOxycalciomicroliteraremineral · Mohs 5-5.5brownish yellow, brownish red
Oxycalciopyrochloreraremineral · Mohs ~5dark brown, brown-black
Oxycalcioroméiteraremineral · Mohs 5-5.5reddish brown- No imageOxykinoshitaliteraremineral · Mohs 2.5bright orange, brown
- No imageOxynatromicroliteraremineral · Mohs ~5brown, yellowish brown
- No imageOxyphlogopiteraremineral · Mohs 3dark brown, black
- No imageOxyplumbopyrochloreraremineral · Mohs 5-5.5yellow, brown, reddish-brown
Oxyplumboroméiteraremineral · Mohs ~5yellow, brownish yellow- No imageOxystannomicroliteraremineral · Mohs >7yellowish brown
- No imageOxystibiomicroliteraremineral · Mohs <5.5greenish white, white
- No imageOxyvaniteraremineral · Mohs 7-7.5black
Oyeliteraremineral · Mohs 5white
Oyoniteraremineral · Mohs 3-3.5black
Ozokeriteuncommonmineral · Mohs 1yellow, brown, black
Pääkköneniteraremineral · Mohs ~2gray- No imagePaariteraremineral · Mohs 3.3-3.6tin white
Pabstiteraremineral · Mohs ~6white, colorless- No imagePaceiteraremineral · Mohs 1.5dark blue
Pachnoliteuncommonmineral · Mohs 3colorless, white- No imagePackratiteraremineral · Mohs ~2very dark greenish blue
Paddlewheeliteraremineral · Mohs ~2blue-green
Padĕraiteraremineral · Mohs 4steel gray, black- No imagePadmaiteraremineral · Mohs 3-4yellow
- No imagePaganoiteraremineral · Mohs 1-2orange, golden brown
- No imagePahasapaiteraremineral · Mohs ~4.5colorless, yellow green, light pink
Painiteraremineral · Mohs ~8brownish, brownish red, orange red- No imagePakhomovskyiteraremineral · Mohs ~2bright pink
Palarstanideraremineral · Mohs 5steel gray
Palenzonaiteraremineral · Mohs 5-5.5wine red
Palermoiteraremineral · Mohs 5.5colorless, white- No imagePalladiniteraremineral · Mohs 2yellow, orange, brown
Palladiumraremineral · Mohs 4.5-5white, steel gray- No imagePalladoarsenideraremineral · Mohs 5steel gray
- No imagePalladobismutharsenideraremineral · Mohs 5silver white
- No imagePalladodymiteraremineral · Mohs ~5white, light gray
- No imagePalladosilicideraremineral · Mohs 5-5.5silver-white, gray
Palladseiteraremineral · Mohs 4.5-5white- No imagePalmieriteraremineral · Mohs 2colorless, white
Palygorskitecommonmineral · Mohs 2-2.5white, gray, brownish white- No imagePampaloiteraremineral · Mohs 4-5no internal reflections
- No imagePanasqueiraiteraremineral · Mohs 5pink, white
- No imagePandoraite-Bararemineral · Mohs ~2.5dark blue
- No imagePandoraite-Cararemineral · Mohs ~2.5dark blue
- No imagePanethiteraremineral · Mohs 3.5brownish yellow
- No imagePanguiteraremineral
- No imagePanichiiteraremineral · Mohs 2.5colorless, white, very pale yellow
Panunziteraremineral · Mohs 5.5colorless, white- No imagePaoloviteraremineral · Mohs 5white
Papagoiteraremineral · Mohs 5-5.5light blue
Papikeiteraremineral · Mohs 5-6black, dark brown- No imagePaqueiteraremineral · Mohs 5
Para-alumohydrocalciteraremineral · Mohs 1.75white, colorless- No imageParaberzeliiteraremineral · Mohs 3.5yellow, yellowish-brown
- No imageParabrandtiteraremineral · Mohs 3-4colorless
Identify minerals in the field
Open RockHoundR to look up properties offline and find rockhounding spots near you.
