Citation: Evans, B. W.; Yang, H. (1998). Fe-Mg order-disorder in tremolite-actinolite-ferro-actinolite at ambient and high temperature Sample: C80, NMNH 168215, from Goose Creek Quarry, Leesburg, Virginia, in an alteration of hornblende, after heating at 700 C. American Mineralogist, 83, pp. 458-475.