Rutile Pyrolusite Brookite Corundum
Rutile Spinel Uraninite Brookite
Silicon Dioxide Iron Oxide Aluminium Oxide Galena
Chalcedony Spinel Hematite Corundum
Rutile Hematite Uraninite Spinel
Quartz Chalcedony Hematite Corundum
Samarskite Brookite Wad Chalcedony
Cuprite Franklinite Magnetite Chromite
Samarskite Quartz Wad Opal