Diopside

specimen number:
1052711

location:
Hull, Quebec, Canada

description:
A loose double terminated crystal of diopside. In good condition all around with no points of attachment. The specimen comes with an antique label as shown at the end of the video. This label divides in acquisition date in 1913.

Arthur Kusche, operating out of Munich (Muenchen), Germany, during the early twentieth century, was a prominent mineral dealer who supplied high-quality regional and international specimens to notable European and global private collectors, academic institutions, and museums. Registered commercially as Arthur Kusche GmbH, his dealership functioned alongside other well-known contemporary Munich firms like Wilhelm Maucher and the Mineralogisches Institut, actively sourcing choice mineral specimens during the peak of central European geological exploration and mining activity. Geologically and historically, Kusche was instrumental in preserving and documenting the provenance of classic alpine, Scandinavian, and eastern European mineralized deposits, acquiring specialized pieces from legendary localities such as the silver mines of Freiberg, the polymetallic systems of Romania, and regional German pegmatites. Historical archives, museum catalogs, and acquisition logs from institutions like the Royal Scientific Society in Trondheim and the State Geological Museum of Lausanne confirm his commercial activities were highly vibrant throughout the 1910s and 1920s, showing that he routinely curated, cataloged, and sold pristine specimens embedded in calcite, quartz, and fluorite gangue matrices.

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