A sapphire from sediment in the Kyll, a river in the western Eifel. The crystal measures approximately 0.9 mm in diameter. Sapphires are among the most precious gems, yet they consist solely of ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback