Withlacoochee River, Madison County, Florida, USAi
| Regional Level Types | |
|---|---|
| Withlacoochee River | River |
| Madison County | County |
| Florida | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
30° 35' 17'' North , 83° 15' 55'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The Withlacoochee River in northern Florida (including Madison Co) is the source of beautiful chalcedony filled coral. It is typically called "agatized coral" but is actually a chalcedony pseudomorph after coral heads. Found in tertiary marine sediments, the coral was smothered in volcanic ash about 10 million years ago, leaving cavities which then filled with chalcedony.
The best known source of this material is Ballast Point in Tampa, but is also found in numerous locations in central and northern Florida. This material is the state mineral of Florida.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Agate Formula: SiO2 |
| ⓘ Quartz var. Agatized coral Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 References: |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz var. Agate | 4.DA.05 | SiO2 |
| ⓘ | var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Agatized coral | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz var. Agate | SiO2 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Quartz var. Agatized coral | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Agate | SiO2 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Agatized coral | SiO2 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Suwannee-Wiggins DomainDomain
- Suwannee TerranePassive Margin
USA
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Withlacoochee River, Madison County, Florida, USA