If you draw with a pencil ... Geologists often study how different types of rocks and minerals form – and that’s the secret to whether they’re easy or hard to break. Rocks are made of ...

There will be gem, jewelry and mineral dealers, silent auctions, drawings, demonstrations on ... cases featuring their expertise in working rocks and special rocks they have found.

“Mineral Wealth: The Art of Geology” is now on display and ... they can see Libby Smith’s works that show The Wave, a sandstone rock formation in Arizona, and the Queen’s Head, a 26 ...

No bigger than a smartphone, this remarkable rock has layers that tell the story of the working lives and hardships of miners in the 1800s. A flawless blue topaz gemstone - the largest of its kind - ...