Muscovite from Flux Gulch, Alum Gulch, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
USA | |
| [var. Sericite] MRDS database Dep. ID file #10048349, MRDS ID #M899936. |
[var. Sericite] Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 261. |