Blanding Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: 1998
name: label: Collector
content: Robert Nale
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-1529 (Blanding Chert): Not a collection from archaeological context. Collection includes raw material, outer surface, and naturally-weathered specimens.
label: Notes
content: L-1529 (Blanding Chert):
label: Notes
content: Blanding Chert, also known as Kankakee, Mooney Hollow, and Spring Branch A, is a white to cream and light gray chert that is often mottled or streaked. It can also be horizontal bands including white (N9), yellowish gray (5Y 8/1), very pale orange (10YR 8/2), or light olive gray (5Y 6/1). When heat-treated it develops a pinkish tint and a dull to satiny luster. Sponge spicules occur with corals or corals and bryozoans. It is opaque and has a dull luster. It has a medium to medium fine texture. Deposits are bedded.
label: Notes
content: Geology remarks: Epoch- Silurian Stage- Alexandrain Silurian, Form- Blanding Silurian
label: Notes
content: Location remarks: Roadcut, west side of U.S. Highway 67, about 500 meters southeast of the Maquiketa floodplain, Mooney Hollow, Jackson Co., IA; The Balnding Formation outcrops on the northern and southern flanks of the Savannah Anticline in northwestern Illinois, Jo Davies, Carroll, and Whiteside counties; Dubuque County, Iowa
label: Notes
content: Archaeology remarks: n.d.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 1
place: label: Place
content: Sabula, Jackson County, Iowa, 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: A598409-0
objectType: label: Object Type
content: Stone