Chouteau Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: Jun 1990
name: label: Collector
content: Jack Holland
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: S-1791 (Chouteau Chert): Unknown collection procedure. Collection includes raw material and outer surface.
label: Notes
content: S-1791 (Chouteau Chert): Appears to be large fractured cobble with cortex.
label: Notes
content: Chouteau Chert, also known as Calhoun County Gray, is a course to fine grain and glossy chert. It has mottling of light and dark blues, resulting in mottled bluish gray, bluish black, and gray. When weathered it has a thick, white cortex. It has fossiliferous inclusions of crinoids, bryzoas, and brachiopods. Uniformly small crinoids, 2-3 mm, appear as white specks within the bluish, gray matrix. Deposits include lenticular, sub rectangular, or tabular module deposits.
label: Notes
content: Geology remarks: Epoch- Mississippian, Series- Lower Mississippian, Stage- Kinderhookian, Form- Chouteau
label: Notes
content: Location remarks: Coon Creek, southeast of Rosedale, Jersey Co., Il; Truman Reservoir area southwest central Missouri along the edge of the Springfield Plateau, and along the Ozark Dome periphery in west central Missouri; southern Illinois River Valley; Chautauqua West, IL.
label: Notes
content: Archaeology remarks: Macoupin site
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 2
place: label: Place
content: Rosedale, Jersey County, Illinois, United States, North America
topic: label: Topic
content: Archaeology
setName: label: See more items in
content: Anthropology
dataSource: label: Data Source
content: NMNH - Anthropology Dept.
identifier: label: Accession Number
content: 2071475
label: USNM Number
content: A598244-0
objectType: label: Object Type
content: Stone