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Iddingsite Image

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Large Iddingsite Image

Mineral: Iddingsite: MgO.Fe2O3.3SiO2ยท4(H2O)
Comments: Red iddingsite with green olivine. Iddingsite alteration of olivine commonly seen in thin-sections is actually a fine-grained mixture of goethite+quartz+chlorite.
Location: Amboy, San Bernadino County, California, USA.
Scale: Specimen Size 5x5x3 cm.
Copyright: © John Betts - Fine Minerals
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