Japan, Gifu
Toki-Mizunami
Toki River gravel bars
Mineral locality Documented siteOpen
What you could find
Reported finds from this ground.
Agates and jasper
Petrified woodAlso reported: rhyolite.
Photos via Wikimedia Commons: Teerui (Public domain), Jon Sullivan (Public domain).
Why this spot
Rockhounding locality: river gravels prized for toki-ishi jasper and chalcedony plus chert and volcanics
Documented river-walking reports; note that prized toki-ishi is now genuinely hard to find
Before you go
Hazards noted for this site.
Dam releases and sudden river risesSlick revetments, limited access points
Keep exploring nearby
More spots in this area.