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Cacoxenite in Quartz Slabs from Minas Gerais, Brazil
Cacoxenite in Quartz Slabs are from Minas Gerais, Brazil. This material is quartz included with cacoxenite and is relatively rare. Be forewarned, these slabs do contain fractures. As with all of the other species in the quartz family, it takes a high polish with cerium oxide, but also takes a fine polish with tin oxide and diamond.