New data on yukonite

• Published in: Powder Diffraction
• Main Authors: Ross, Daphne R., Post, Jeffrey E.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 1997
• Subjects: Condensed Matter Physics; Instrumentation; General Materials Science; Radiation; Yukon; Canada; Tagish; Tagish Lake
• Online Access: http://dx.doi.org/10.1017/s0885715600009556; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0885715600009556

A new occurrence of the poorly characterized mineral, yukonite, ( Ca 6.44 K 0.13 Mg 0.23 )( Fe 14.68 Al 0.36 )( AsO 4 ) 9 O 15.78 ·25.5 H 2 O , is described. New powder X-ray diffraction and electron microprobe data are provided for type material from Tagish Lake, Yukon Territory, Canada, and that from the new locality, Saalfield, Thuringen, Germany. New chemical formulae are proposed. The strongest reflections are at 14.1(100), 2.79(60), 3.25(57), 5.58(37), 2.61(20), 1.63(20), and 2.24(11) Å.