A video of the rock was first posted on Facebook by Mike Bowers on Jan. 16, who said that the agate was from Brazil. Agate is an ornamental stone that's normally made up of quartz and other gemstones.

2X4 piece of wood, about 3 feet in length* 3-6, 2-2.5 inch screws** 3-6 metal, 1-inch spacers 3 gemstones, geodes or small agate slices Industrial strength E-6000 glue*** Pencil Ruler or measuring ...

A royal slice of agate has gone on display at the Museum. The piece of agate, a type of chalcedony which itself is a variety of quartz, has a pattern resulting from different impurities such as iron ...

Here’s how it works. A rock collector in Brazil found this agate, a type of quartz that develops in volcanic rock, that looks just like Cookie Monster. (Image credit: Kennedy News & Media) ...

With an understated elegance, this natural white agate slice is stunning in its simplicity. Nola Rock Co., 1214 Decatur St., New Orleans, www.nolarockco.com. Stand-mounted agate slice, $38.