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Sphalerite, Marcasite (variety iridescent marcasite)
G. P. Materials South Quarry, Potosi, Potosi Barite District, Washington County, Missouri, USA
52 mm 46 mm x 37 mm
(Author: Don Lum)
| Dimensions: | 1600 x 1411 |
| File size: | 361.43 kbytes |
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