Talk:Cassiterite

"COLTAN"

"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."

• ReliefWeb accessed 7-20-05

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.

• the reference given only mentions COLTAN in comparison to the mining of cassiterite in the DRC not as a synonym to Cassiterite.
• It does not address the legally mined ore versus illegally mined ore
• It was published in 2005 so an update on the situation is needed

Kevmin 18:42, 27 August 2007 (UTC)

Agreed. The illegal mining/warring for cell phone materials belongs elsewhere. This is an article about the mineral - not about the use/misuse of tin or other elements and their ores. Take/Leave it elsewhere. Vsmith 02:00, 28 August 2007 (UTC)

File:Cassiterite.jpg to appear as POTD soon

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)

Picture of the day

Two bipyramids of cassiterite, the mineral form of tin dioxide. Cassiterite, a widespread minor constituent of igneous rocks, has been the chief tin ore throughout ancient history and remains the most important source of tin today. Its lustre and multiple crystal faces produce a desirable gemstone.Photo: Alchemist-hp

Dartmoor

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)

Dumb Question

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?

71.109.221.207 (talk) 21:11, 12 May 2012 (UTC)