Cuprite from Liufengshan Mine, Guichi District, Chizhou, Anhui, China. Maybe mined out in 2020, size: 13.82-7.65-4.47cm, many sharp cuprite crystals on the matrix, large size specimen, typic found from this location, cuprite single crystals are more separate in different size matching than other normal pieces from this location, NO.20220819CTK12.