Clear Creek Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: Not given
name: label: Collector
content: B. K.
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-141 (Clear Creek Chert): Collection includes outer surface and naturally-weathered specimens.
label: Notes
content: L-141 (Clear Creek Chert): TBS (or T135) R2W Dec. 32
label: Notes
content: Clear Creek Chert, also known as Hutchins or Hutchins Creek, is a very grainy to smooth chert. It is white, gray, and light blue which can be mottled or streaked. High quality, light colored can be confused with Burlington chert. It becomes white, gray, or has a yellow cortex when weathered. It occasionally has fossiliferous inclusions. Deposits include bedded lenses and modules, also as residuum.
label: Notes
content: Geology remarks: Epoch- Devonian, Series- Middle Devonian/Lower Devonian, Form- Clear Creek
label: Notes
content: Location remarks: Outcrops along the Mississippi River bluffs, southwestern Illinois. Best exposure at Pine Hills, Union Co.
label: Notes
content: Archaeology remarks: Limited prehistoric use because of its low knapping qualities; highly fractured and massive grainy structure.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 6
place: label: Place
content: Union 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: A598306-0
objectType: label: Object Type
content: Stone