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Explore Eifel Rhineland, Rhineland Palatinate and more!

Hematite | #Geology #GeologyPage #Minerals Chemical Formula: Fe2O3 Locality: Nickenicher Weinberg (Nickenicher Sattelberg), Nickenich, Andernach, Eifel, Rhineland-Palatinate, Germany Field of View: 2.9 mm Photo Copyright © Volker Betz Geology Page

High Down Quarry is the type locality for the aluminium phopshate wavellite. It was discovered there by John Hill in the late eighteenth century and named for William Wavell a local physician and #mineral collector. (photo by Crazy Dave Green on Flickr)

moqui marbles, utah Iron oxide concretions (Moqui marbles) Moqui Marbles, hematite concretions, from the Navajo Sandstone of southeast Utah. Scale cube, with "W", is one centimeter square. The Navajo Sandstone is also well known among rockhounds for its hundreds of thousands of iron oxide concretions