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Sphalerite is an important ore of zinc; around 95% of all primary zinc is extracted from sphalerite ore. [42] However, due to its variable trace element content, sphalerite is also an important source of several other metals such as cadmium, [ 43 ] gallium, [ 44 ] germanium, [ 45 ] and indium [ 46 ] which replace zinc.
Zinc produced from sphalerite is used for many purposes, including mixing with copper to produce brass, rust protection of iron & steel, and for making modern American pennies (although the cost of making each zinc penny is >1¢). The crystalline sphalerite specimen shown above is from the well-known Central Tennessee Zinc District (a.k.a ...
Chemically, it is cadmium sulfide, and occurs as a bright yellow coating on sphalerite or siderite in vugs, deposited by meteoric water. [ 4 ] It was discovered in 1955 in the Hector-Calumet mine, Keno-Galena Hill area, Yukon Territory and named in honour of mineralogist James Edwin Hawley (1897–1965), a professor at Queen's University in ...
He is credited with coining the mineral terms: pyrargyrite (1831), ozokerite (1833), sepiolite (1847), halite (1847), sphalerite (1847), arsenopyrite (1847), and liparite (1847). [2] He also conducted research in the field of botany — in 1836, paleobotanist Heinrich Göppert named the plant genus Glockeria in his honor.
The zinc in sphalerite is also used to produce brass. This sample was extracted in Creede, Colorado, and features black tetrahedral crystals of sphalerite up to 8 mm (0.31 in) in size, with minor chalcopyrite and calcite, in a 4.5 cm × 3.0 cm × 2.0 cm (1.77 in × 1.18 in × 0.79 in) matrix.
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The Village News and Southwest News is a local newspaper in Greater Houston, headquartered in Bellaire, Texas. [1] It is published and edited by Kathleen "Kathy" Ballanfant. The Houston Chronicle wrote in 2013 that Ballanfant "is known for her local news coverage for the past 28 years." [2] Ballanfant established the newspaper on June 1, 1985. [3]
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