Search Mineralpedia – A Mineral Photo Database and Identification Guide
A rare mineral named for the type locality at the Khaidarkan Sb-Hg deposits in Osh, Kyrgyzstan. Additional localities for Khaidarkanite include in the Hoher Sonnblick area in Salzburg, Austria, as well as newer localities in Germany and Russia. It appears as blue flattened needles and aggregates with secondary copper minerals.
Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)
Named after Albert Laws Kidwell of Texas, USA for his contributions to the knowledge of Arkansas phosphate deposits. Kidwellite is an uncommon mineral that can be found as a replacement for early phosphate minerals. It occurs in localities in the United States, Germany, England, Australia, and Namibia, among a few others.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/kidwellite.pdf
Named for Professor Kenjiro Kimura at the Tokyo University in Japan who made large contributions to rare earth mineralogy. Kimuraite is a rare mineral that can be found only in Japan, Russia, and Sweden. It occurs in fissures in alkalic olivine basalts. Kimuraite crystals fluoresce bright red to purple under both short- and long-wave ultraviolet light.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/kimuraitey.pdf