Soil Texture

Soil is distinguished by particle size. Larger particals are considered sand, medium sized particles are siltd, and the smallest particles are considered clay. The diagram below shows you how much of each partcle you have in a specific type of soil. For example: Sandy clay has 50% sand, 10% silt, and 40% clay.

12 Soil Orders of the World

Here's a link to the description of each of the soild: http://www.nerrs.noaa.gov/doc/siteprofile/acebasin/html/envicond/soil/sltax.htm

The soil type most commonly found in GA is Ultisol. http://soils.usda.gov/technical/classification/orders/ultisols.html

 

 

The picture above is a Munsell Soil color chart.

The picture below is of the soil layers.









Minerals and Rocks

Pyrite

Pyrite, also known as fool's gold, is a mineral composed of iron sulfide. This is the most common type of sulfide mineral and is found with quartz, sedimentary, and metamorphic rocks, and is also found in coal beds. 

Basalt

Basalt is an igneous rock formed from the rapid cooling of lava. It contains 20% quartz, 10% feldspar. It is the most common rock type on Earth with the largest occurrence being found on the ocean floor.

Migmatite

Migmatite is a metamorphic rock that contains old rocks that have been changed over time due to extreme temperatures and pressure.

Limestone

Limestone is a sedimentary rock made of calcium carbonate and is found in the south east, usually in cave systems due to water eroded the rock over several years.