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Proustite | #Geology #GeologyPage #Mineral

Chemical Formula: Ag3AsS3
Locality: Himmelsfurst mine, Erbisdor, near Freiberg, Germany
Name Origin: After the French chemist, J. L. Proust (1755-1826).

Proustite is a sulfosalt mineral consisting of; silver sulfarsenide, Ag3AsS3, known also as light red silver or ruby silver ore, and an important source of the metal.

Read more : http://www.geologypage.com/2014/07/proustite.html
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Ceraurinus marginatus Trilobite | #Geology #GeologyPage #Trilobite #Fossil

Age: Upper Ordovician
Locality: Cobourg Formation, Colborne, Ontario, Canada
Size: 9 cm

Photo Copyright © American Museum of Natural History

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The teeth of Changchunsaurus: Rare insight into ornithopod dinosaur tooth evolution | #Geology #GeologyPage

The teeth of Changchunsaurus parvus, a small herbivorous dinosaur from the Cretaceous of China, represent an important and poorly-known stage in the evolution of ornithopod dentition, according to a study released November 7, 2018 in the open-access journal PLOS ONE by Jun Chen of Jilin University in China and colleagues.

Read more : http://www.geologypage.com/2018/11/the-teeth-of-changchunsaurus-rare-insight-into-ornithopod-dinosaur-tooth-evolution.html
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Fluorite | #Geology #GeologyPage #Mineral

Locality: Quanzhou, Anxi Co., Quanzhou Prefecture, Fujian Province, China

Size: 6.8 x 6.8 x 3.6 cm

Photo Copyright © Anton Watzl Minerals

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Azurite | #Geology #GeologyPage #Mineral

Locality: Touissit, Oujda-Angad Prov., Oriental Region, Morocco

Size: 4.5 x 3.2 x 2.5 cm

Photo Copyright © Anton Watzl Minerals

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Seismic study reveals huge amount of water dragged into Earth’s interior | #Geology #GeologyPage

Slow-motion collisions of tectonic plates under the ocean drag about three times more water down into the deep Earth than previously estimated, according to a first-of-its-kind seismic study that spans the Mariana Trench.

Read more : http://www.geologypage.com/2018/11/seismic-study-reveals-huge-amount-of-water-dragged-into-earths-interior.html
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Harrison's Cave | #Geology #GeologyPage #Cave

Harrison's Cave is a tourist attraction in the country of Barbados, The caves were first mentioned in historical documents in 1795. For almost 200 years they were forgotten. In the early 1970s, Ole Sorensen, along with Tony Mason, re-discovered them.the cave was not made by man but by nature and earth.

The caves are naturally formed by water erosion through the limestone rock. The calcium-rich water that runs through the caves have formed the unusual stalactites and stalagmites formations.

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Earth’s magnetic field measured using artificial stars at 90 kilometers altitude | #Geology #GeologyPage

The mesosphere, at heights between 85 and 100 kilometers above the Earth’s surface, contains a layer of atomic sodium.

Read more : http://www.geologypage.com/2018/11/earths-magnetic-field-measured-using-artificial-stars-at-90-kilometers-altitude.html
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Liddicoatite | #Geology #GeologyPage #Mineral

Locality: Antsira, Sahatany Valley, Antananarivo Province, Madagascar

Size: 5.3 x 2.4 x 2.1 cm

Photo Copyright © Anton Watzl Minerals

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