Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Agate from
Chain of Rocks Gravel Bar, Madison County, Illinois, USA


Locality type:Alluvials
Classification
Species:Quartz var: Agate
Formula:SiO2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Agate data
Locality Data:Click here to view Chain of Rocks Gravel Bar, Madison County, Illinois, USA
Photo GalleryView Gallery (7 photos)
Data Identifiers
Mindat Occurrence Record ID:1214000
Long-form Identifier:1:3:1214000:0
GUID (UUID V4):0
Nearest other occurrences of Agate
28.4km (17.7 miles) Union Road, St. Louis County, Missouri, USA
29.4km (18.3 miles) Des Peres quarry, St. Louis County, Missouri, USA
30.1km (18.7 miles) Lindbergh Boulevard and Interstate 55 Road intersection, St. Louis County, Missouri, USA
32.7km (20.3 miles) Weber Quarry, St. Louis County, Missouri, USA
84.4km (52.4 miles) Richwoods Barite District, Washington County, Missouri, USA
90.1km (56.0 miles) Southwest Jefferson County barite and lead District, Jefferson County, Missouri, USA
93.0km (57.8 miles) Blackwell Mine, Tiff, Washington County, Missouri, USA
93.7km (58.2 miles) Haunted Ridge Mine, Cadet, Washington County Barite Mining District, Washington County, Missouri, USA
96.3km (59.8 miles) Old Mines area, Washington County, Missouri, USA
References
 
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