Six fossils of salamanders were found embedded in volcanic ash in an ancient lake bed in western Liaoning Province, China. Photo: Mick Ellison, American Museum of Natural History/Proceedings of the National Academy of Sciences Posted on March 2012
Blue Biggs Jasper is a silicated volcanic ash. It was formed during a volcanic eruption and is part of a Miocene series of rocks called the John Day Formation, near Biggs, Oregon, USA. It is a decorative stone used for jewellery and trinkets.
MAMMATUS clouds are most often associated with the anvil cloud & severe thunderstorms. They often extend from the base of a cumulonimbus but may also be found under altocumulus, altostratus, stratocumulus, & cirrus clouds as well as volcanic ash clouds^
AC Roman house - the ruins of Pompeii and other Campanian sites near Naples in Italy preserved by volcanic ash and lava - have left us a very good idea of what Roman houses looked like in the first century AD