Crescent Chert (AKA Burlington/High Ridge/Crescent Hills)
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: 1987
name: label: Collector
content: J. D. Holland
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-333 (Crescent Chert): Collection includes raw material, outer surface, and naturally-weathered specimens.
label: Notes
content: L-333 (Crescent Chert)
label: Notes
content: Crescent Chert is also known as Avon, Burlington, Crescent Hills, High Ridge, Hinkson Creek, Kampsville, Marshall Mediocrity, Noix Creek, Republic, or St. Augustine. It can be shades of white, gray, tan, yellow, pink, brown, purple, red, blue, or green. When heat-treated it becomes glossy. When weathered it becomes calcareous and weathered to vitreous and chalcedonous. It may have inclusions of graptolite fossils of the Dendroidea order. It has a very smooth and fine texture. Deposits include chert nodules and blocks.
label: Notes
content: Geology remarks: Epoch- Mississippian, Stage- Valmeyeran, Form- Burlington-Keokuk
label: Notes
content: Location remarks: Northwestern portion of Jefferson County, Missouri, and Southwestern portion of St. Louis County, Missouri; High Ridge, Jefferson County, Missouri.
label: Notes
content: Archaeology remarks: The Crescent Hills area contains 77 known quarry and non-quarry sites.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 1
place: label: Place
content: High Ridge, Jefferson County, Missouri, 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: A598659-0
objectType: label: Object Type
content: Stone