![green epidote crystal val malenco valtellina italy green epidote crystal val malenco valtellina italy](https://www.mineralfossil.com/wp-content/gallery/macro/thumbs/thumbs_epidoto-sissone.jpg)
![vesuvianite val malenco valtellina italy vesuvianite val malenco valtellina italy](https://www.mineralfossil.com/wp-content/gallery/macro/thumbs/thumbs_vesuviana-val-lanterna-3.jpg)
![vesuvianite val malenco valtellina italy vesuvianite val malenco valtellina italy](https://www.mineralfossil.com/wp-content/gallery/macro/thumbs/thumbs_vesuviana-val-lanterna.jpg)
![geode calcedonio brasil (2).JPG geode calcedonio brasil (2).JPG](https://www.mineralfossil.com/wp-content/gallery/south-america/thumbs/thumbs_geode-calcedonio-brasil-2.jpg)
![geode calcedonio brasil.JPG geode calcedonio brasil.JPG](https://www.mineralfossil.com/wp-content/gallery/south-america/thumbs/thumbs_geode-calcedonio-brasil.jpg)
![magnetite brasil.JPG magnetite brasil.JPG](https://www.mineralfossil.com/wp-content/gallery/south-america/thumbs/thumbs_magnetite-brasil.jpg)
![quartz japanese geminate brasil.JPG quartz japanese geminate brasil.JPG](https://www.mineralfossil.com/wp-content/gallery/south-america/thumbs/thumbs_quartz-japanese-geminate-brasil.jpg)
![azurite morocco.JPG azurite morocco.JPG](https://www.mineralfossil.com/wp-content/gallery/africa/thumbs/thumbs_azurite-morocco-2.jpg)
![calcite morocco.JPG calcite morocco.JPG](https://www.mineralfossil.com/wp-content/gallery/africa/thumbs/thumbs_calcite-morocco.jpg)
![carollite.JPG carollite.JPG](https://www.mineralfossil.com/wp-content/gallery/africa/thumbs/thumbs_carollite.jpg)
![celestine madagascar.JPG celestine madagascar.JPG](https://www.mineralfossil.com/wp-content/gallery/africa/thumbs/thumbs_celestine-madagascar.jpg)
![cerussite barite morocco.JPG cerussite barite morocco.JPG](https://www.mineralfossil.com/wp-content/gallery/africa/thumbs/thumbs_cerussite-barite-morocco.jpg)
![malachite Democratic Republic of the Congo (formerly Zaire) Lukuni Mine in Katanga Province.JPG malachite Democratic Republic of the Congo (formerly Zaire) Lukuni Mine in Katanga Province.JPG](https://www.mineralfossil.com/wp-content/gallery/africa/thumbs/thumbs_malachite-democratic-republic-of-the-congo-formerly-zaire-lukuni-mine-in-katanga-province.jpg)
![vanadinite morocco.JPG vanadinite morocco.JPG](https://www.mineralfossil.com/wp-content/gallery/africa/thumbs/thumbs_vanadinite-morocco.jpg)
![almandine gilgit pakistan.JPG almandine gilgit pakistan.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_almandine-gilgit-pakistan.jpg)
![fluorite china.JPG fluorite china.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_fluorite-china.jpg)
![fluorite india.JPG fluorite india.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_fluorite-india.jpg)
![hematite rose on quartz china.JPG hematite rose on quartz china.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_hematite-rose-on-quartz-china.jpg)
![lapislazzuli afganistan.JPG lapislazzuli afganistan.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_lapislazzuli-afganistan.jpg)
![quartz epidote china.JPG quartz epidote china.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_quartz-epidote-china.jpg)
![topaz pakistan.JPG topaz pakistan.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_topaz-pakistan.jpg)
![topaz quartz pakistan.JPG topaz quartz pakistan.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_topaz-quartz-pakistan.jpg)
![tormaline pakistan.JPG tormaline pakistan.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_tormaline-pakistan.jpg)
![zircone pakistan.JPG zircone pakistan.JPG](https://www.mineralfossil.com/wp-content/gallery/asia/thumbs/thumbs_zircone-pakistan.jpg)
![analcime sardegna,Italy.JPG analcime sardegna,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_analcime-sardegnaitaly.jpg)
![andradite garnet isola d'elba,Italy.JPG andradite garnet isola d'elba,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_andradite-garnet-isola-delbaitaly.jpg)
![aragonite spagna.JPG aragonite spagna.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_aragonite-spain.jpg)
![calcite italy.JPG calcite italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_calcite-italy.jpg)
![calcite valtellina,Italy (2).JPG calcite valtellina,Italy (2).JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_calcite-valtellinaitaly-2.jpg)
![calcite valtellina,Italy (4).JPG calcite valtellina,Italy (4).JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_calcite-valtellinaitaly-4.jpg)
![calcite valtellina,Italy.JPG calcite valtellina,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_calcite-valtellinaitaly.jpg)
![epidote valmalenco,Italy.JPG epidote valmalenco,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_epidote-valmalencoitaly.jpg)
![grossularia liguria,Italy.JPG grossularia liguria,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_grossularia-liguriaitaly.jpg)
![hessonite adamello,Italy.JPG hessonite adamello,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_hessonite-adamelloitaly.jpg)
![orthoclase quartz elba island,Italy.JPG orthoclase quartz elba island,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_orthoclase-quartz-elba-islanditaly.jpg)
![pyromorphite sardegna,Italy.JPG pyromorphite sardegna,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_pyromorphite-sardegnaitaly.jpg)
![quartz emilia romagna,Italy.JPG quartz emilia romagna,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_quartz-emilia-romagnaitaly.jpg)
![quartz formazza,Italy.JPG quartz formazza,Italy.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_quartz-formazzaitaly.jpg)
![quartz rodocrosite romania.JPG quartz rodocrosite romania.JPG](https://www.mineralfossil.com/wp-content/gallery/europe/thumbs/thumbs_quartz-rodocrosite-romania.jpg)
![apatite messico.JPG apatite messico.JPG](https://www.mineralfossil.com/wp-content/gallery/north-america/thumbs/thumbs_apatite-messico.jpg)
The discovery of anomalously high levels of mercury in rocks from the Ordivician geological period has led to a new interpretation of the ensuing mass extinction. A sequence of disturbances may have led to catastrophic cooling by reflective sulfate aerosols injected into the atmosphere by massive volcanism. The finding is important since aerosol cooling is under consideration as a way to temper global warming.
Geology News — ScienceDaily