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"Cassiterite has recently become an illegally mined and traded mineral in the Democratic Republic of the Congo. This is due to great increase in tin demand because new lead-free solder materials have a larger proportion of tin. It is generally traded by some organizations as coltan.Coltan and cassiterite are two totally different minerals. Cassiterite is currently (August 2007) being legally mined by artisanal miners in Katanga Province."
I moved this paragraph here because there are several major issues with it but it could be made into an viable addition to the article still.
Kevmin 18:42, 27 August 2007 (UTC)
Hello! This is a note to let the editors of this article know that File:Cassiterite.jpg will be appearing as picture of the day on November 22, 2011. You can view and edit the POTD blurb at Template:POTD/2011-11-22. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page so Wikipedia doesn't look bad. :) Thanks! howcheng { chat} 20:08, 20 November 2011 (UTC)
Since when has Dartmoor been in Cornwall? Does the article refer to deposits on Dartmoor (which is in Devon), or on moorland in Cornwall (probably Bodmin Moor)? Peridon ( talk) 19:52, 2 February 2012 (UTC)
I understand that charcoal is black and diamonds are white, and (roughly) understand why: It's a crystallography/isomer/diffraction thing.
But I *think* Tin dioxide and cassiterite have the same crystallography, and yet one is white and the other black. Why is that?
![]() | This ![]() It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||||||||||||||||
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"Cassiterite has recently become an illegally mined and traded mineral in the Democratic Republic of the Congo. This is due to great increase in tin demand because new lead-free solder materials have a larger proportion of tin. It is generally traded by some organizations as coltan.Coltan and cassiterite are two totally different minerals. Cassiterite is currently (August 2007) being legally mined by artisanal miners in Katanga Province."
I moved this paragraph here because there are several major issues with it but it could be made into an viable addition to the article still.
Kevmin 18:42, 27 August 2007 (UTC)
Hello! This is a note to let the editors of this article know that File:Cassiterite.jpg will be appearing as picture of the day on November 22, 2011. You can view and edit the POTD blurb at Template:POTD/2011-11-22. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page so Wikipedia doesn't look bad. :) Thanks! howcheng { chat} 20:08, 20 November 2011 (UTC)
Since when has Dartmoor been in Cornwall? Does the article refer to deposits on Dartmoor (which is in Devon), or on moorland in Cornwall (probably Bodmin Moor)? Peridon ( talk) 19:52, 2 February 2012 (UTC)
I understand that charcoal is black and diamonds are white, and (roughly) understand why: It's a crystallography/isomer/diffraction thing.
But I *think* Tin dioxide and cassiterite have the same crystallography, and yet one is white and the other black. Why is that?