Tag Archive: rocks

This is lightning ridge black opal.


The world’s largest free-form black opal weighs 6,000 carats.

Kyrenia, Cyprus, by photographer Old Kyrenian.

Pic of the Day – 6/6/18

Stonemason Johnny Clasper with one of his creations.

An opal geode.

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.

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