Prof Gustavus ("Gustav") Rose FRSFor HFRSE (18 March 1798 – 15 July 1873) was a German mineralogist who was a native of Berlin.

While studying with Berzelius, Rose met German chemist Eilhard Mitscherlich (1794–1863), with whom he maintained a lifelong friendship.

In 1829, with German naturalists Alexander von Humboldt (1769–1859) and Christian Gottfried Ehrenberg (1795–1876), Rose took part in a scientific expedition throughout Imperial Russia.

Gustav Rose made important contributions in the fields of petrology[3] and crystallography, and is credited for pioneering usage of the reflective goniometer in Germany.

[3] He identified many minerals new to science, including perovskite, named in honor of Russian mineralogist Lev Aleksevich von Perovski (1792–1856).