|
Zoisite - Corundum |
|
Wolframite in Quartz |
|
Vanadinite |
|
Trona |
|
Trace Fossils |
|
The Geologic Time Spiral |
|
Sugilite |
|
Stibnite with accessory minerals |
|
Steatite Statue |
|
Sphalerite, Marcasite, Calcite |
|
Sphalerite - Calcite |
|
Sphalerite |
|
Smoky Quartz |
|
Smithsonite |
|
Silicon Carbide (Synthetic) |
|
Silicon - glass sand |
|
Shark Tooth |
|
Septarian Nodule |
|
Schorl Tourmaline |
|
Rose Quartz Elephant |