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 661-720 of 5,084 specimens
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Brownleeite
Brownmillerite
Brüggenite
Hardness: 3.5
Brugnatellite
Hardness: 2
Brumadoite
Hardness: 1
Brunogeierite
Hardness: 5
Brushite
Hardness: 2.5
Bubnovaite
Buchwaldite
Hardness: 3
Buckhornite
Hardness: 2.5
Buddingtonite
Hardness: 5.5
Bukovite
Hardness: 2
Bukovskyite
Hardness: 5
Bulachite
Hardness: 2
Bulgakite
Hardness: 3
Bultfonteinite
Hardness: 4.5
Bunnoite
Bunsenite
Hardness: 5.5
Burangaite
Hardness: 5
Burbankite
Hardness: 3.5 - 4
Burckhardtite
Hardness: 2
Burgessite
Hardness: 3.5
Burkeite
Hardness: 3.5
Burnettite
Burnsite
Hardness: 1 - 1.5
Burovaite-ca
Burpalite
Hardness: 5 - 6
Burroite
Hardness: 1.5 - 2
Bursaite
Burtite
Hardness: 3
Buryatite
Hardness: 2.5
Buseckite
Bushmakinite
Hardness: 3 - 3.5
Bussenite
Hardness: 4
Bussyite-(ce)
Bussyite-(y)
Hardness: 4
Bustamite
Hardness: 5.5 - 6.5
Butianite
Butlerite
Hardness: 2.5
Bütschliite
Buttgenbachite
Hardness: 3
Byelorussite-(ce)
Hardness: 5.5 - 6
Bykovaite
Hardness: 3
Byrudite
Hardness: 7
Bystrite
Hardness: 5
Byströmite
Hardness: 7
Bytízite
Hardness: 2 - 3
Byzantievite
Hardness: 4.5 - 5
Cabalzarite
Hardness: 5
Cabriite
Hardness: 4
Cabvinite
Cacoxenite
Hardness: 3 - 4
Cadmium
Hardness: 1 - 2
Cadmoindite
Cadmoselite
Hardness: 4
Cadwaladerite
Caesiumpharmacosiderite
Cafarsite
Hardness: 5.5 - 6
Cafetite
Hardness: 4 - 5
Cahnite
Hardness: 3
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