Abstract

Panthera jasper is a dark spotted yellowish-brown to brown jasper from occurrences in the area of Baumholder in the South-West-German Saar-Nahe-Bassin. The yellowish-brown to brown colour is caused by limonite, the dark spots are due to manganese minerals, especially romanèchite. Indications for processing into jewellery date back to the 16th century.

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Contents of the 1/2 June 2026 issue

75 Jahre Zeitschrift der Deutschen Gemmologischen Gesellschaft

C. C. Milisenda und J. Guo
Neues Vorkommen kupferführender Turmaline in Äthiopien

K. Schmetzer
Böhmische Granate - Vorkommen, Gewinnung und Verarbeitung

U. Henn und R. Schmidt
Panthera-Jaspis aus Baumholder

U. Henn, T. Döbler, Q. Wang und T. Stephan
Purpur- bis lilafarbener Chalcedon aus Äthiopien

Angie Crabtree: Edelsteine auf der Leinwand
Ein Portrait der Künstlerin von B. Weninger

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