Geological Survey Program
414 East Clark Street
Akeley-Lawrence Science Center
Vermillion, SD 57069
ph: 605-677-5227
Derric Iles, State Geologist Email
![](images/RoseQuartz-crop.jpg)
State Mineral: Rose Quartz
![](images/Fairburn_3039.jpg)
State Gemstone: Fairburn Agate
Source: SD Museum of Geology
![](images/tricera.jpg)
State Fossil: Triceratops