To say that The Final Revival of Opal & Nev is a sly simulacrum of a rock oral history is to acknowledge only the most obvious of this novel's achievements. Walton aspires to so much more in this ...

Narrator: Miners start by drilling a vertical shaft in an area that they think contains opal. Then they must clear out an underground room large enough to start digging at the rock. Frederick ...

According to a study from the Denver Museum of Nature and Science, the rock formation's unique prominence and durability can partially be attributed to the presence of opal -- a gem that makes the ...

The very generalized evolution of the opal started with an aquatic cuttlefish dying and sinking to the seafloor. As sediment buried the fish, the surrounding sediment began to lithify into rock ...

Our world produces some incredible rocks. Take the opal, a precious stone that forms out of silica, in the dark under the surface of the earth. When cut and polished, it flashes with a gorgeous ...

Opal Fern Baker, Castle Rock, CO passed away peacefully, surrounded by her family April 7, 2017, four days shy of her 96th birthday. Born to Effie and Evert Nokes in Meeker, CO the oldest of three ...

Using a database of over 3000 images of opal in various states—within rock walls, loose, polished, and set in jewellery—the model can detect opal in diverse situations with high accuracy.

Approximately 70 percent of the world's opals come from the mining town of Coober Pedy in South Australia, where half of its population lives underground. Yva Momatiuk & John Eastcott/Minden ...