Geology & Mineral smol channel

Жіноча фігурка з гірського кришталю.Анатолія, IV тисячоліття до н.е. Музей мистецтв і торгівлі, Гамбург.

My labradorite that looks like the Eye of Sauron

The jewelled cover of the Codex Aureus of St. Emmeram, c. 870, a Carolingian Gospel book.

1st Century Sarmatian gold diadem found in Russia

"In 1298 AD, the king of Hungary Andreas II presented to his wife Queen Agnes a stone-set wooden altar piece as a royal wedding present. This small medieval artwork, known today as the Königsfelder diptychon, was originally made in Venice.... a recent research collaboration with the Historic Museum of Berne, SSEF was invited to inspect this medieval masterpiece for a first gemmological investigation of the stones set in the item. As a preliminary result of this research project, we found that the two wings of the wooden altar are dominated by ornamental stones, such as various varieties of chalcedony and jasper, with two onyx plates in the centre, and additionally a few blue cobalt-glass cabochons and natural pearls. The filigree portraits of saints with their gloriole made of tiny seed pearls are covered as a protection by rock crystal plates, probably from Alpine sources." https://www.ssef.ch/gemmological-study-of-the-medieval-konigsfelder-diptychon/