Talk:Navajo Sandstone

I thought Navajo sandstone was deserving of its own entry in Wikipedia, since it is one of the most impressive formations found in the Colorado plateau and is one of the primary reasons that Utah has so many national parks. (from User:GroupX}

Alternate names for Moqui Marbles
In the section: Iron Oxide Concretions (Moqui Marbles), I've added the additional names used by enthusiasts, and documented the rock/geology enthusiast's side whree the names were references. This is common usage, so hopefully the reference is sufficiently valid for laymen's terms, just as examples of names used: Moqui Marbles, Moqui Balls, Moki Marbles, Shaman Stones, Thunderballs. They all describe the same physical thing. Just different names people have used over the years.

Stone Spheres of Costa Rica
It should be noted that the artificial nature of the Stone spheres of Costa Rica is well known and as documented in their Wikipedia page, the publications mentioned in its text, and the web pages in its external links section. They are now known beyond a shadow of any doubt to be man-made artifacts. It is an established fact that they are not any type of concretion. They are completely unrelated in origin to (1.) any concretions, i,e, either Martian spherules, Moeraki Boulders, or Moqui Balls; (2.) megaspherulites, i.e. the stone balls of Cerro Piedras Bola of Jalisco, Mexico; and (3.) any other spherical and semi-spherical object of natural origin. The stone spheres of Costa Rica are only related to man-made stone balls such as lapidary spheres, stone round shot (cannonballs), and the Carved Stone Balls of Scotland and have nothing to do with spherical and semi-spherical objects of natural origin. Thus, as far as the the Stone spheres of Costa Rica are concerned, they lack any relevance to a discussion of Moqui marbles.

Map
I think a map showing where the Navajo Sandstone formation occurs would be informative. Thoughts?

Sadly I don't have the time; but hopefully someone else does! —Preceding unsigned comment added by Quickos (talk • contribs) 01:35, 20 October 2010 (UTC)

Backwards take on redox
Just checking solubilities and Uranium Dioxide (+4) is insoluble but oxidized Uranyl (+6) salts are soluble. The opposite of your text. Wikipedia articles verify Uranium solubility. You ref Navahoe sandstone, so you should know that "Four Corners" coal (a reducing environment) is associated with Uranium deposits in that area. Uranium captured by coal is the cause of radioactivity released by coal burning powerplants. Shjacks45 (talk) 22:35, 26 March 2020 (UTC)

"Mocchi ball" listed at Redirects for discussion
An editor has identified a potential problem with the redirect Mocchi ball and has thus listed it for discussion. This discussion will occur at Redirects for discussion/Log/2022 November 26 until a consensus is reached, and readers of this page are welcome to contribute to the discussion. –LaundryPizza03 ( d c̄ ) 19:18, 26 November 2022 (UTC)