CONTENTS / Vol. 45, No. 6

 Arseniosiderite Fact Sheet
 Rupert Hochleitner and Stefan Weiß

 Striegau, Poland: Diverse calcites and interesting pseudomorphs
 Thomas Körber and Eligiusz Szeleg

 Rediscovered: The crystal cleft of 1719 at Zinggenstock, Switzerland
 Thilo Arlt
 Mixed-up paintings and a glacial advance
 Old and new crystal finds

 Own find: Needle marcasite from Thuringia

 New minerals

 LAPIS Stock Market Calendar 2020 / 2nd Half of the Year