“Reference: TZ99N0 A novelty for Tucson 2009. Group of octahedral crystals with slight curvatures of faces and edges. They have excellent luster, with reddish reflections especially vivid under a strong light. The sample is from a recent find (July and August of 2008) at a Russian locality practically unknown until now. Poteryaevskoe Mine, block 2-1, ↓100 m., Rubtsovsky District, Altai Krai  Russia (06-08/2008) Specimen size: 3.3 × 3.2 × 2.5 cm = 1.30” × 1.26” × 0.98” Main crystal size: 2.2 × 1.6 cm = 0.87” × 0.63””