Talk:Popigai impact structure

Location from Norilsk

Where is Popi really from Norilsk? The page says it's 'just North' of the settlement, but Google Earth says it's over 500 of either one or t'other away from Norilsk. I'm aware that one, other or both could be wrong, so what's the truth? Lady BlahDeBlah (talk) 23:46, 1 March 2009 (UTC)

It is at +71° 39' 42.97", +110° 57' 39.59" I've added a link to Google Maps. 70.74.191.229 (talk) 05:22, 10 January 2014 (UTC)

Add Crater Infobox?

Someone may want to apply crater template {{Infobox crater | crater_name = {{SUBST:PAGENAME}} | image_crater = | alt_crater = | caption_crater = | image_bathymetry = | alt_bathymetry = | caption_bathymetry = | location = | coords = {{coord|89|59|59|N|179|59|59|W|region:ZZ_type:waterbody|display =inline,title}} | type = | basin_countries = | length = | width = | area = | depth = | max-depth = | volume = | rim = | elevation = | cities = | reference = }}

Crater characteristics

--YakbutterT (talk) 23:32, 18 February 2010 (UTC)

Trustworthyness of Sources

For a piece of news that will shock the diamond dealing world, there is only one source - the Christian Science monitor. This source is repeated all places online, and they are seemlingly the only ones that know about this. Can someone confirm this from more sources? — Preceding unsigned comment added by 193.9.0.125 (talk) 09:16, 18 September 2012 (UTC)

"twice as hard"

The article currently states the diamons at Popigai are "twice as hard" as normal and they contain lonsdaleite. Lonsdaleite has a hardness of 6-7 vs diamond at 10. I see the Russian source and various tabloids do say that, but seems such a claim requires a better source. The translated Russian source is hyping the story (is it a WP:RS?) and the tabloids follow along - any fact checking there? Vsmith (talk) 10:16, 18 September 2012 (UTC)

Seems a friendly ip has now modified the text and changed the twice as to 58% harder w/ a ref. Thanks, Vsmith (talk) 11:52, 18 September 2012 (UTC)

If you click the "lonsdaleite" link, the extreme hardness of pure lonsdaleite crystal is explained there. The 6-7 hardness you mention is because it is usually found with impurities that make it softer. There is no way to actually measure the hardness of the stuff found in the crater, because the usual hardness test of something is to scratch it with a diamond, and in this case you can't. But IIRC they found that drill bits coated with these impact diamonds last longer than bits coated with normal diamonds. 69.228.171.70 (talk) 15:40, 22 September 2012 (UTC)

Reference #5 is bogus

This reference goes to an empty domain with ads. — Preceding unsigned comment added by 24.101.250.87 (talk) 16:12, 18 September 2012 (UTC)

Fixed, url change, thanks - Vsmith (talk) 18:54, 18 September 2012 (UTC)