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Mineral
Mineral
Naturally occurring usually inorganic substance that has a (more or less) definite chemical composition and a crystal structure
Ungarischen Geologischen Gessellschaft
Aggtelek National Park Directorate
Balatoni Múzeum - Keszthely
Balatoni Múzeum - Keszthely
Balatoni Múzeum - Keszthely
Balatoni Múzeum - Keszthely
Balatoni Múzeum - Keszthely
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum
Hungarian Natural History Museum