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Opal, Todorokite
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| Mineral: | Opal: SiO2·n(H2O) Todorokite: (Na,Ca,K)2(Mn++++,Mn+++)6O12·3-4.5(H2O) | |||||
| Comments: | Dendritic todorokite in white opal. | |||||
| Location: | Brosso Mine, Ivrea, Torino, Piemonte, Italy. | |||||
| Scale: | See Photo. | |||||
| Copyright: | © Jeff Weissman / Photographic Guide to Mineral Species | |||||
| Counter: | This Image has been shown 1936 times | |||||
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