10033 Protochabourneite, Arsiccioite, Pyrite, Monte Arsiccio Mine, Sant’Anna di Stazzema, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy

Type Locality for both species. This relatively NEW SPECIES was approved in 2011 but has only recently reached the mineral market (October 2014). Protochabourneite occurs as black micro granular aggregates sparely scattered in quartz/pyrite matrix, a complex triclinic thallium-lead-antimony sulfosalt. Also present, minute deep red micro granules of arsiccioite.