Mysteries1908 Tunguska eventArtifactsJohn's Stone, a quartzite boulder on Stoykovich MountainJohn's Stone, a quartzite boulder on Stoykovich Mountain: photo
John's Stone, a quartzite boulder on Stoykovich Mountain: photo
A microscope thin section of a fragment, described on Commons as metamorphic, terrestrial rock.
Cmbrenneisen58 (Wikimedia Commons), 1972. CC BY 4.0
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PhotoCmbrenneisen58 (Wikimedia Commons) · commons.wikimedia.org · 2008-05-08 · CC BY 4.02 steps from the original
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Mysteries Department. (2026). John's Stone, a quartzite boulder on Stoykovich Mountain: photo [Copy CPY0D4ECXAE17EX]. https://mysteriesdept.com/r/CPY0D4ECXAE17EX
@misc{mysteriesdept_art0d4ect4w0r4x,
title = {John's Stone, a quartzite boulder on Stoykovich Mountain: photo},
author = {{Mysteries Department}},
year = {2026},
note = {Artifact, catalog key CPY0D4ECXAE17EX},
url = {https://mysteriesdept.com/r/CPY0D4ECXAE17EX}
}