Search Mineralpedia – A Mineral Photo Database and Identification Guide
Named after its type locality at the Kladno mine in the Kladno district of the Czech Republic. One additional locality for this rare mineral occurs in Russia in the Southern Urals. Kladnoite forms as a result of coal heap fires. Kladnoite is typically colorless to white to a pale yellow and forms elongate crystals.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/kladnoite.pdf
Named to honor the former Hungarian Minister of Education, Kuno Klebelsberg. Klebelsbergite is a rare mineral that occurs as “an alteration product of stibnite in antimony deposits.” It can be found in Romania, Italy, France, Hungary, the United States, Slovakia, Japan, and Portugal, among a couple others. Klebelsbergite can be weakly magnetic if there is an impurity of iron present in the mineral.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/klebelsbergite.pdf
Named in honor of Carl Klein, former Professor of Mineralogy at the University of Berlin in Germany. Kleinite is a rare mineral found only in the United States and in Germany, and it occurs in hydrothermal mercury deposits. Associated minerals include terlinguaite, gypsum, barite, calcite, mosesite, calomel, montroydite, and other mercury minerals.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/kleinite.pdf