Title | Nontronite |
Description | Nontronite is a sodium ferric-iron silicate hydroxide hydrate mineral of the clay group. Nontronites chemical formula is Na0.3Fe+++2(Si,Al)4O10(OH)2·n(H2O). It is named after its locality in Nontrone, Dordogne, France. |
Location | USA ▹ North Dakota. Near Hazen. |
Photographer | Shannon Heinle. 2002-02-10. |
Collection | University of North Dakota Mineralogy Collection #1479. |
Key words | nontronite, silicate |
Tech details | 335 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 2344 |
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