![]() The results show the obsidian in John Dee’s mirror and one of the other mirrors could only have come from the Pachuca region of central Mexico. The research was first published in published in the journal Antiquity in 2021.īecause chemical elements glow differently under x-rays, the scanner was able to determine a geochemical “fingerprint” for each obsidian object based on the proportions of titanium, iron, strontium, and other substances each contained. Researchers used a portable x-ray fluorescence scanner to examine John Dee’s mirror, as well as three other obsidian objects-two almost-identical circular mirrors and a polished rectangular slab-acquired by the British Museum from collectors in Mexico in the 1800s. The British Museum purchased the mirror in the late 1800s it is currently on display in museum’s Enlightenment Gallery. This particular “spirit mirror,” attested in the 1650s as part of John Dee’s skyring collection, was eventually purchased in the 1700s by the writer Horace Walpole, who believed it belonged to the English Renaissance polymath and was used by him in magical rituals. ![]() ![]() Tales abound of Dee’s occult exploits, including his practice of skrying, or conjuring angels and spirits through clairvoyant tools such as crystals and mirrors. This list of prohibited items is subject to change at the discretion of venue management.Please be respectful of copyright. No jewelry or clothing that could inflict harm (spikes on boots or jackets, spiked collars, or chains).No unsealed liquids or gels of any kind.No professional photo, video, or audio recording equipment - (including detachable lenses, tripods, zooms or commercial use rigs).No video cameras, GoPros, selfie sticks, drones, masks that cover the entire face or laser pointers.No drugs or drug paraphernalia, illegal substances of any kind.Replicas of any type of weapon are NOT permitted. ![]()
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