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Glauconite
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| Mineral: | Glauconite: (K,Na)(Fe+++,Al,Mg)2(Si,Al)4O10(OH)2 | ||||
| Comments: | Green glauconite intermixed with quartz. | ||||
| Location: | Ightham, Kent, England. | ||||
| Scale: | See Photo. | ||||
| Copyright: | © Jeff Weissman / Photographic Guide to Mineral Species | ||||
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