Georgia

 

Geological State Symbols Across America           Geology of the National Parks Through Pictures


Georgia State Geological Symbols
Type
Symbol
Year Established
State Mineral
Staurolite
1976
State Gemstone
Quartz
1976
State Fossil
Shark Tooth
1976

 

State Mineral: Staurolite

 


State Gemstone: Quartz

Quartz is one of the most common minerals on Earth, primarily due to its simple structure and chemical formula, SiO2. Quartz also has an extremely high hardness, 7 on Mohs hardness scale, meaning that it doesn't scratch very easily and therefore does not break down easily. As the rocks on Earth are slowly eroded over time, most of the other minerals will break down into clay while quartz grains will generally just gets smaller and smaller. The result is that most beach sand is composed of quartz that has a slight hematite (rust) stain to it to give the sand grains their slight yellowish color. Although quartz is a simple mineral, it can come in a variety of colors depending on what type of impurities are present in the crystal structure; pure quartz crystal is clear, milky quartz is white, smoky quartz is grey, amethyst is purple quartz, citrine is yellow quartz, rose quartz is pink, as well as some other colors and varieties. Quartz does not have any cleavage, meaning that when it breaks it doesn't form along perfect surfaces. Instead as the quartz crystals grow, individual mineral molecules of quartz are added to the outside of the crystal from water rich in dissolved SiO2 or mineral melt (liquid rock like lava or magma).


State Fossil: Shark Tooth


 

References

https://statesymbolsusa.org/states/united-states/georgia


Geology of Georgia's National Parks

Through Pictures

(at least the one's I have been to)

 

Fort Frederica National Monument

Visited in 2003

 

Fort Frederica National Monument

The only picture I got here was in front of a tree covered in some Spanish moss