User:Kenny Ewing

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Hi! My name is Chris Ducat. I live in Massachusetts. As of this moment, I would say I've been a member of Wikipedia for quite some time (April 2004). At the time Wikipedia seemed huge, but it had 250,000 articles, compared to the 5 million+ today! I haven't done too much editing, although I have started some pretty major articles. Here's some stuff I've done so far (updated not as often as it should be):

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  • If you really want to, a list of my contributions is here

Picture of the Day[edit]

I'm an amateur photographer and always love to see well done pictures

Another good place to find good pictures of the day: Steve's Digicams


Sphalerite
Sphalerite is a sulfide mineral with the chemical formula (Zn,Fe)S. It is found in a variety of deposit types, and is found in association with galena, chalcopyrite, pyrite (and other sulfides), calcite, dolomite, quartz, rhodochrosite, and fluorite. Sphalerite is an important ore of zinc, with around 95 percent of all primary zinc extracted from its ore. Due to its variable trace-element content, sphalerite is also an important source of several other metals such as cadmium, gallium, germanium and indium. 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. This photograph was focus-stacked from 125 separate images.Photograph credit: Ivar Leidus

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