There are several similar finds of this type of marble on Gotland, the largest measuring 4,8 cm in diameter. It was found at Gustavs in Fröjel parish, hence the name.
These honed, silver-incased rock crystals were probably worn as ornaments, but can also be used as magnifying glasses. The marbles are unique to Gotland in the Nordic area and most likely the honed crystal was imported from Persia and later incased and finished on Gotland.
10th-13th century A.D.
Silver (925) and sodalite.
Height (including hook): approx. 37 mm
Diameter: approx. 18 mm
Inner diameter of ring: 7 mm
Weight: approx. 12 g
Colour: melange dark blue, gray, black, medium blue and white.
N.B: Each rock is unique in its pattern and colours. The rock you buy may differ slightly from the picture.