Description
This specimen from the 1970s shows the typical paragenesis from the German Artenberg gneiss quarry: distinctly green Fluorite octahedrons up to 2.7 cm on white, translucent Calcite rhombohedrons with steel gray Tetrahedrite. Although the largest of the translucent Fluorite crystals is not perfect; most of the others are. It must be stated that the paragenesis of Fluorite and Calcite with Tetrahedrite is typical but rare. The active quarry whose access is strictly prohibited, hosts Quartz-Calcite veins with Copper-Antimony ores and Quartz vugs that contain alpinotype mineral assemblages.
Paragenesis
Tetrahedrite