Caption

Six microscopic enlargements of minerals, page, photomechanical print, Image 1 is titanite, 2 is sanidine, 3 is sanidine, 4 is orthoclase, 5 is phonolite and 6 is phonolite., number: '1, 6', number: 'Tafel XXIII', 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 vertically oriented page shows six circular grayscale microscope images arranged in three rows and two columns, each circle containing varied textures and patterns; the top left circle displays angular crystalline shapes and cloudy mottling, while the top right circle shows a layered, featherlike structure with speckled areas along its edge. The middle left circle features a central square-like bright area surrounded by a grainy field with scattered rounded spots, and the middle right circle contains concentric hexagonal banding with irregular dark patches at the perimeter. The bottom left circle shows several irregularly shaped pale fragments set against a darker granular background, and the bottom right circle contains an elongated segmented pale object with fine lines across it on a darker speckled ground. The background of the page is a light, slightly textured off-white.

Credit line

Photo12/Liszt Collection

Reference

LZT26B00_214

License type

Rights managed

Available size

40.5Mb (7.1Mb) / 9.9in x 15.8in / 2980 x 4748 (300dpi)

Keywords

Six microscopic enlargements minerals page photomechanical print Image 1 titanite 2 sanidine 3 4 orthoclase 5 phonolite 6 number 1 Tafel XXIII 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 vertically oriented six circular grayscale microscope images arranged three rows two columns circle containing varied textures patterns top left displays angular crystalline shapes cloudy mottling top right circle layered featherlike structure speckled areas edge middle left features central square- bright area surrounded grainy field scattered rounded spots middle right contains concentric hexagonal banding irregular dark patches perimeter bottom left several irregularly shaped pale fragments set darker granular background bottom right contains elongated segmented pale object fine lines across darker speckled ground background light slightly textured off-white