Schörl
Black tourmaline
in granite
Pink feldspar
gray quartz
Sonnenberg St. Andreasberg
geol. upper Harz
Lower Saxony
southernmost foothills of the Brocken Plutons
about 296 million years old
Old find from the seventies
Size approx. 18 x 15 x 13 mm
weight about 4 grams