Rock crystal, Fadenquartz with calcite – Piz Beverin, Graubünden, Switzerland
 Former collection of Dr. Walter Kühnel via Carl Bodenmann, 07.09.1991
 Wonderfully sharp-edged crystallized Fadenquartz with a clearly visible Faden and an attached calcite crystal. Additional flat quartz crystals protrude from the Fadenquartz in the upper third. The thin, yellow layer of limonite adds a lovely color accent and three-dimensionality to this beautiful collector's piece.
 An alpine classic from Piz Beverin in outstanding quality.