Tangeite ::Locality: Manganese Mine, Copper Harbor, Keweenaw Co., Michigan, USA ::"Original description:" Collected 2011 by D. Maietta. Field of view is 4.1mm horizontal. ::Lens: Edmund Optics Plan Apo 5X/0.14 ::F-stop: N/A ::Mounting: Normal, with tube lens ::FOV: 4.1 mm ::Lighting: Dual fiber partially diffused ::Processing: CombineZP do-stack retouched with manual stack composition