This ferberite specimen is from the Yaogangxian Mine, Xaogangxian W-Sn Ore Field, Tizhang, Chenzhou Prefecture, Hunan Province of China. Tungsten and tin are the primary minerals extracted from multiple ore bodies in an area spanning 4 x 2.5 km. Seventy-eight different species of minerals are found there including ferberite, calcite and mica. Ferberite is an oxide that contains the elements Fe, W and O. P. This specimen consists of parallel blade-like ferberite crystals that host or are partially covered with calcite, mica, quartz and minor fluorite crystals. This piece is a miniature that measures 1 13/16 x 1 1/4 x 1 inches or 46 x 32 x 25 mm.