RC47H7: Parallel aggregate with a slightly twisting (gwindel) The faces of the prism are neat and bright; meanwhile the rhombohedron is rough and matte due to Chlorite inclusions. The specimen entered the Folch collection through an exchange in 1947.
Drum Tobel, Sedrun, Municipality of Tujetsch (Tavetsch), Surselva District, Grischun (Grisons; Graubünden)  Switzerland (±1940)

Specimen size: 5.3 × 5.2 × 2.7 cm = 2.09” × 2.05” × 1.06”