Hintze (Vol. 2, 1897) gives Sterzing (Vipiteno), South Tyrol as the TL for margarite and refers to Mohs (1820). In fact, Mohs described the mineral, but did not provide an analysis. According to Zepharovich (1873), Greiner Mt has to be regarded as the TL, based on the data provided by Senger.
Quality of samples:
not specified / average specimens
W. Senger: "Oryctographie der Gefürsteten Grafschaft Tirols", Wagner (Innsbruck), 1821, pp. 32-33