At the Buffalo State College in New York, an examination of seven Gutenberg Bibles by Gregory D Smith, assistant professor of conservation science, showed the full chemical palettes of the documents. A specific analysis is significant because the texts are heavily decorated and can make the observer assume that pigments used must have been the most valuable available. However, in the King George III copy at the British Library in London, England, there is no lapis. Instead, the blue color is azurite, which is a much less expensive copper carbonate. The study is also meant to show how such works of art should be handled and maintained. Smith believes that the Gutenberg Bibles are well-preserved and maintained, but an understanding of the chemical makeup of the pigments will allow curators to get a conservation plan. Researchers analyzed the pigments with a Renishaw System 1000 spectrometer outfitted with a 632.8nm HeNe, a 514.5nm argonion, and a 783nm diode lasers. Two setups were used. For the first setup, the lasers were run at their lowest convenient powers for the task, and when the Bible was held by a book cradle, it was illuminated with light through a 10x objective at the remote probe head of either the HeNe or the diode laser, mounted over the cradle. For the second evaluation method, which analyzed pigment debris that gathers in the gutters between the pages over the centuries, grains were examined in the same way. The Raman spectra were compared with those in libraries of spectra taken by another group from reference samples.