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Tristramite
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| Mineral: | Tristramite: (Ca,U++++,Fe+++)(PO4,SO4)ยท2(H2O) | ||||
| Comments: | Reflected light, crossed polars showing a cavity with tristramite (white) infill and surrounded by intergrowth of marcasite (dark) and pitchblende (dark). (MinMag, v47:344). | ||||
| Location: | Wheal Trewavas Head dumps, Cornwall, UK. | ||||
| Scale: | Scale bar = 0.1 mm. | ||||
| Copyright: | © Mineralogical Magazine | ||||
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