gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1921.019.92.01 Identity of Trechmann's ‘β-tin’ with Stannous Sulphide1 Spencer L. J.M.A., Sc.D., F.G.S. Assistant in the Mineral Department of the British Museum

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