Six microscopic magnifications of minerals, Cohen, c. 1880 - in or before 1885 photomechanical print Figure 1 is quartz, 2 is nose, 3 is melafier, 4 is melanite in phonolite, 5 is augiet and 6 is augiet in nefelinite. GreifswaldOffenburg paper collotype minerals and metals
Size: 5782px × 4204px
Photo credit: © piemags/rmn / Alamy / Afripics
License: Licensed
Model Released: No
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