A very unusual piece from the Münstertal in Black Forest. I grew up here and consequently I´m very familar with most of the mines there. Only two of them are possible. On the one hand the Schlossberg West Mine due to the Malachite, on the other hand the Leopold adit of the Herrenwald vein due to the colour of the Fluorite (yellow was rather common). In any case a super specimen from this old time classic Black Forest locale with gemmy, light yellow cubes of finest luster. Exceeding hard to get such stuff from here.