2 replies to this topic
Posted 19 September 2013 - 08:46 AM
I see some meteorites are described as recrystalized. What does this mean? Are they different from ones that are not recrystalized?
Posted 19 September 2013 - 10:42 AM
I know that shock can cause recrystalization. I believe it refers to material that changed form from the extreme force involved. Again, back to Canyon Diablos, graphite can be converted to diamond through shock. Also, during impact, severe shock can produce newly formed crystals in terrestrial material as well as the meteorite. Some, like coesite, are only formed under ultra high pressure and are diagnostic for an impact event.