The goal is to locate the sulfur in leonardo 's ground layer , the tin in the white prime layer and the chemicals in the color pigments , like the mercury in vermilion and the copper in blue pigments of azurite .

这是是为了确定达芬奇油画表层中硫和白色乳胶漆里锡的位置，以及颜料中的其他化学成分，比如说朱红颜料里的汞和蓝色颜料里的铜。

So geochemist robert hazen of the carnegie institution of washington in washington , d. c. , and colleagues traced the origins of nearly 3000 common terrestrial minerals -- such as turquoise , azurite , and malachite -- to about a dozen ancient minerals .

因此，华盛顿特区卡内基华盛顿研究所地球化学家罗伯特黑曾（roberthazen）和他的同事追踪近3000块常见陆地矿物如绿松石、蓝铜矿和孔雀石等大约一打古老矿物的来源。