Latest Calamine Stories
By Rosemeyer, Tom The Leadville mining district, whose history, geology, and mineralogy have been described in numerous publications, is one of the most famous silver mining camps in the United States. For an in- depth study of the ore deposits and mineralogy of the district, the reader is referred to Emmons, Irving, and Loughlin (1927), Loughlin (1918, 1926), and Shannon and Shannon (1985). The fortunes of mining made several individuals millionaires, mostly from the profits of the rich...
Smithsonite, or zinc spar, is zinc carbonate ZnCO3, a mineral ore of zinc. Historically, smithsonite was identified with hemimorphite before it was realised that they were two distinct minerals. The two minerals are very similar in appearance and the term calamine has been used for both, leading to some confusion.
Zinc is a chemical element in the periodic table that has the symbol Zn and atomic number 30. Notable characteristics Zinc is a moderately reactive metal that will combine with oxygen and other non-metals, and will react with dilute acids to release hydrogen. The one common oxidation state of zinc is +2. Applications Zinc is the fourth most common metal in use, trailing only iron, aluminium, and copper in annual production. - Zinc is used to galvanize metals such as steel to...
- A Roman unit of weight, 1⁄1728 of a pound.
- A weight of four grains used in weighing gold and precious stones; a carat.
- In anatomy, a formation suggesting a husk or pod.
- The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
- A coin of base silver of the Gothic and Lombard kings of Italy.