Minerals
Minerals are naturally occurring inorganic substances with a specific chemical composition and crystalline structure. They are the building blocks of rocks and are classified by their chemical composition and crystal system.
Showing 3301-3360 of 5,084 specimens
Browse by Letter
Ottemannite
Hardness: 2
Ottensite
Hardness: 3.5
Ottohahnite
Hardness: 2.5
Ottoite
Ottrelite
Hardness: 6 - 7
Otwayite
Hardness: 4
Oulankaite
Hardness: 3.5 - 4
Ourayite
Hardness: 2
Oursinite
Hardness: 3 - 3.5
Ovamboite
Overite
Hardness: 3.5 - 4
Owensite
Hardness: 3.5
Owyheeite
Hardness: 2.5
Oxammite
Hardness: 2.5
Oxo-magnesio-hastingsite
Hardness: 6
Oxo-mangani-leakeite
Oxy-chromium-dravite
Hardness: 7.5
Oxy-dravite
Oxy-foitite
Hardness: 7
Oxy-schorl
Hardness: 7
Oxy-vanadium-dravite
Hardness: 7
Oxybismutomicrolite
Oxycalciomicrolite
Oxycalciopyrochlore
Oxycalcioroméite
Oxykinoshitalite
Hardness: 2.5
Oxynatromicrolite
Oxyphlogopite
Hardness: 3
Oxyplumboroméite
Hardness: 5
Oxystannomicrolite
Oxystibiomicrolite
Oxyvanite
Hardness: 7 - 7.5
Oyelite
Hardness: 5
Oyonite
Hardness: 3 - 3.5
Ozerovaite
Pääkkönenite
Hardness: 2.5
Paarite
Hardness: 3.5
Pabstite
Hardness: 6
Paceite
Pachnolite
Hardness: 3
Packratite
Hardness: 2
Paddlewheelite
Hardness: 2
Padĕraite
Hardness: 4
Padmaite
Hardness: 3 - 4
Paganoite
Hardness: 1 - 2
Pahasapaite
Hardness: 4.5
Painite
Hardness: 8
Pakhomovskyite
Hardness: 2
Palarstanide
Hardness: 5
Palenzonaite
Hardness: 5 - 5.5
Palermoite
Hardness: 5.5
Palladinite
Palladium
Hardness: 4.5 - 5
Palladoarsenide
Hardness: 5
Palladobismutharsenide
Hardness: 5
Palladodymite
Palladogermanide
Palladosilicide
Palladothallite
Palladseite
Hardness: 4.5 - 5
Browse Other Categories
Identify Minerals Instantly
Snap a photo to instantly identify any minerals specimen. Get detailed properties, hardness, and chemical composition.