Onondaga (Red) Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: Oct 2001
name: label: Collector
content: Todd Harrington
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-1694 (Onondaga Chert): Not a direct collection from outcrop. Provenience includes float/residuum and gravel deposits. Not a collection from archaeological context. Known collection procedure. Collection includes raw material, outer surface, and naturally-weathered specimens.
label: Notes
content: L-1694 (Onondaga Chert): These grey Onondaga chert samples display the curious red transition attributed to mineral leaching caused by high ambient temperatures. Similar examples, especially of prehistoric artifacts, have been mistakenly identified as jasper. Red is not the sole color resulting from this phenomenon as yellows and browns have been recovered in Ontario and elsewhere in Erie & Genesee Counties to date. *See map in notes/comments section of inventory sheet*
label: Notes
content: Onondaga is also known as Black Rock, Buttermilk Falls, Central Onondaga, Clarence, Coniferous, Diver's Lake, Eastern Onondaga, Edgecliff, Moorehouse, Nedrow, Seneca, Upper Onondaga, and Western Onondaga. It can be gray, mottled gray, black or white. There is generally no color change when heat treated. However, it may turn red, purple or white when treated with extreme heat. It becomes white, pale blue, tan, or brown when weathered. It may have fossiliferous inclusions. It has a coarse to glossy texture. Deposits included bedded tabular and nodular in limestone, glacial, and alluvial gravel deposits. SEE ALSO: BLACK ROCK, BUTTERMILK FALLS, CLARENCE, EATERN ONONDAGA, EDGECLIFF, MOOREHOUSE, NEDROW, SENECA
label: Notes
content: Geology remarks: Epoch- Late Devonian, Series- Erian, Group- Ulsterian, Form- Onondaga, Member- Seneca, Moorehouse, Nedrow, Clarence, Edgecliff.
label: Notes
content: Location remarks: Lake Erie shoreline, Ontario, Canada; Buttermilk falls chert, PA; Niagara Frontier, NY; Esopus Creek. West Hurley, NY; northeastern and northwestern PA.
label: Notes
content: Archaeology remarks: Used during all cultural periods; Arc Site, Genesee Co., NY, Paleoindian; Kilmer Site, Steuben Co., NY, Paleoindian; Meadowcraft Rockshelter
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 2
place: label: Place
content: Lancaster Township, Erie County, New York, 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: A598851-0
objectType: label: Object Type
content: Stone