row, from left: Euclase, 2.3 cm, from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department...Spann collection; Tom Spann photo. Fluorite with quartz, 11 cm, from Fujian Province, China. Keith & Diane...Budd photo. Tanzanite, 7.6 cm, from the Merelani mine near Arusha, Tanzania. Barry & Beth Kitt collection;...Jordan Root photo. Fluorite on quartz, 13 cm, from the Yaogangxian mine, Chenzhou Prefecture, Hunan Province...Spodumene (variety kunzite), 9 cm, from the Urucum mine, Galiléia, Minas Gerais, Brazil. Gus & Jane Eifler |