Explore / North America / Texas
Texas
Llano TX
Llanite roadcut, Highway 16
Mineral locality Documented siteGray area
What you could find
Reported finds from this ground.
Crystals and minerals
OpalAlso reported: rhyolite.
Photos via Wikimedia Commons: Stephanie Clifford from Arlington, VA, USA (CC BY 2.0), Dpulitzer (CC BY-SA 4.0).
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Why this spot
Rockhounding locality: the world's only llanite dike, brown rhyolite studded with opalescent blue quartz, cut by the highway north of Llano
mapped roadcut exposure documented with coordinates; llanite occurs nowhere else
Before you go
Hazards noted for this site.
highway traffic close to the outcropNarrow shoulder
Keep exploring nearby
More spots in this area.