Fluorite – Okorusu Mine, Otjiwarongo, Otjozondjupa, Namibia
 A 12.5 cm x 12 cm fluorite specimen from the Okorusu Mine in Namibia. The cube-shaped fluorites, up to 3 cm in size, are intense green in daylight, blue under UV light, and exhibit beautiful zoning (phantom patterns). The open-pit mine at the Okorusu Mine has since closed, and no new specimens are currently coming onto the mineral market.