Talk:Peridotite

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thread_title:  Copyright problem removed 

message: What if any, is the relationship between peridot and peridotite?  Are the names a coincidence?
I do not know for sure but would think that it has something to do with the high amount of olivine in both aforementioned substances.
Peridot, the gemstone is in fact, magnesium rich forsterite olivine. Fayalite, the iron olivine, is usually less green and transparent.Rolinator 12:14, 28 December 2005 (UTC)
thread_title:  [[Peridot]] 

message: I have added the Geology template as this article has a lot of geology information that hard to ignore. Solarapex 03:32, 11 May 2007 (UTC)
thread_title:  Geology Project 

message: It has been recently discovered that Peridotite can turn CO2 in the air into harmless compounds like calcite at an astonishing rate. since this rock could potentially become a major topic of interest to environmental efforts, it might be a good idea to mention that. source: http://cleantechnica.com/2008/11/10/scientists-discover-rock-that-can-absorb-carbon-dioxide-emissions-directly-from-the-air/  —Preceding unsigned comment added by 69.132.41.57 (talk) 01:50, 11 November 2008 (UTC)
thread_title:  [[Potential for Carbon Storage]] 

message: Peridotite is not a rock it is group of diverse rocks. It is certainly not always coarse grained. It can be igneous( both volcanic and plutonic) crustal rock or of mantle origin. 
So I suggest change : Peridotite  is group of diverse rocks of ultramafic composition. In its composition is more similar to some meteorites then the rocks of earth crust, it is characterised with higher amount of Mg and lower Si than average continental crust and even oceanic crust. Volcanic rocks of these composition erupted only in early earth history. Obradow (talk) 11:11, 28 May 2016 (UTC)
replies: text: Presumably you are referring to komatiites? I don't see them anywhere being regarded as peridotites any more than basalts are gabbros or rhyolites are granites. We should define peridotites as they are defined in the literature. If you have a source that gives an alternative definition, then it would be good to see that. Mikenorton (talk) 10:19, 29 May 2016 (UTC)
replies: text:  I apologize that was my very sloppy mistake. Thank you! It is  huge disgrace I will live with. This is the example why classifications are needed. We should be clear what we are speaking about....Obradow (talk) 20:53, 29 May 2016 (UTC)
thread_title:  Critic of first paragraph