Caption

Six microscopic enlargements of minerals, page, photomechanical print, Image 1 is microcline, 2 is microcline and albite, 3, 4, 5 and 6 is plagioclase., number: '1, 6', number: 'Tafel XXV', photographer: Emil Cohen, Greifswald, cliché maker: J. Grimm, Offenburg, c. 1880 - in or before 1885, Baden-Württemberg, Mecklenburg-Vorpommern, paper, collotype, photoprint, height 233 mm x width 149 mm, minerals and metals, A vertical sheet shows six circular black-and-white close-up images arranged in two columns and three rows, each circle containing different textured patterns and shapes; the top left circle displays horizontal layered striations with uneven edges, the top right circle shows diagonal streaked textures with a lighter wedge cutting across its lower portion, the middle left circle contains a dense, fragmented network of angular shards and mottled dark areas, the middle right circle features a dark background with lighter elongated rectangular and needle-like fragments clustered toward the center, the bottom left circle presents a darker field with a central lighter rectangular shape surrounded by irregular lighter patches, and the bottom right circle shows a mix of linear striations and irregular broken pieces with contrasting light and dark regions.

Credit line

Photo12/Liszt Collection

Reference

LZT26B00_216

License type

Rights managed

Available size

39.1Mb (9.3Mb) / 10.0in x 15.3in / 2986 x 4578 (300dpi)

Keywords

Six microscopic enlargements minerals page photomechanical print Image 1 microcline 2 albite 3 4 5 6 plagioclase number 1 Tafel XXV photographer Emil Cohen Greifswald cliché maker J Grimm Offenburg c 1880 - 1885 Baden-Württemberg Mecklenburg-Vorpommern paper collotype photoprint height 233 mm x width 149 mm metals vertical sheet six circular black- -white close-up images arranged two columns three rows circle containing different textured patterns shapes top left displays horizontal layered striations uneven edges top right circle diagonal streaked textures lighter wedge cutting across lower portion middle left contains dense fragmented network angular shards mottled dark areas middle right features dark background lighter elongated rectangular needle- fragments clustered center bottom left presents darker field central lighter rectangular shape surrounded irregular lighter patches bottom right circle mix linear striations irregular broken pieces contrasting light dark regions