A lovely Boulder Opal split....Bill Kasso
Geode with pink crystals - how to hunt for geodes.
Vivianite - Oruro department, Bolivia Size: 3.0 x 3.0 cm
Quartz var.Amethyst - Goboboseb Mts., Brandberg Area, Erongo Region, Namibia Size: 8.5 x 3.5 x 3.5 cm
Fluorite - Minerva Mine, Hardin Co., Illinois, USA.
"I found a little agate....."
Rock On — gorgeousgeology: Stunning specimen of amethyst...
This is a star-shaped quartz cluster with brilliant augelite crystals distributed between the quartz. From Mundo Nuevo Mine, Sanchez Carrion, La Libertad, Peru. Credit: Rudolf Watzl
Exceptional specimen featuring a large Spessartine Garnet | Geology IN