Difference between revisions of "File:1947-177 residue 3 gypsum particle PPL 400x.jpg"
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| − | + | Well-shaped particle of gypsum mixed with iron oxides. PPL, 400x. Sample collected from brownish resides in an apothecary jar in the Colonial Williamsburg Collection (CWF 1947-177). Particle has a columnar shape. Examined with a Nikon NiU upright polarizing light microscope, image captured with DSRi1 Pixel-shifting camera and Nikon Elements Basic Research software. Colonial Williamsburg Foundation, Materials Analysis Laboratory. | |
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| + | Photo credit: Kirsten Moffitt, Colonial Williamsburg Foundation | ||
Latest revision as of 13:25, 27 September 2017
Well-shaped particle of gypsum mixed with iron oxides. PPL, 400x. Sample collected from brownish resides in an apothecary jar in the Colonial Williamsburg Collection (CWF 1947-177). Particle has a columnar shape. Examined with a Nikon NiU upright polarizing light microscope, image captured with DSRi1 Pixel-shifting camera and Nikon Elements Basic Research software. Colonial Williamsburg Foundation, Materials Analysis Laboratory.
Photo credit: Kirsten Moffitt, Colonial Williamsburg Foundation
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| current | 13:12, 27 September 2017 |  | 1,014 × 811 (619 KB) | KMoffitt (talk | contribs) | File uploaded with MsUpload |
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