Justus Ludwig Adolf Roth

Justus Ludwig Adolf Roth (September 15, 1818, Hamburg – April 1, 1892) was a German geologist and mineralogist.
Biography.
In 1844 he obtained his doctorate from the University of Jena and spent the next few years working as a pharmacist in Hamburg. In 1848 he relocated to Berlin, where he came under the influence of Gustav Rose and Heinrich Ernst Beyrich. In 1867 he became an associate professor of mineralogy at the University of Berlin.
He may be regarded as one of the founders of petrographical science. In his published papers he dealt with metamorphism and crystalline schists, discussed the origin of serpentine, and wrote on the rocks of Mount Vesuvius and Ponza Island.
Selected works.
His separate works included: