Tag Archive: rocks


An Oregon conta luz opal.

A pebbled shoreline in Glacier National Park, Montana.

A slice of fossilized tree with opal growth in the rings.

This is the Richat Structure seen from the ISS. It’s in Mauritania, in the Sahara desert. Photo by Dutch astronaut Andre Kuipers.

An Ethiopian welo opal. Looks like an underwater scene.

Another Ethiopian opal.

An Ethiopian opal geode.

The ancient standing stones of Stenness in northern Scotland’s Orkney Islands by photographer Jim Richardson.

stones-of-stenness-no-scotland-orkney-islands_jim-richardson

Last of the boulder opals.

boulder opal

This boulder opal appears to be a glistening stream.

boulder opal stream

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