Galena (AKA Bass) Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: Jun 1991
name: label: Collector
content: Gerald Goth
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-811 (Galena Chert): Collection includes raw material, outer surface, and naturally-weathered specimens.
label: Notes
content: L-811 (Galena Chert)
label: Notes
content: Galena Chert is also known as Bass Cherts, Dunleith, or Eagle Point. It can be light gray (10YR 7/1, 10YR 7/2, 2.5Y 7/2), light brownish gray (10YR 6/2, 2.5Y 6/2), white (10YR 8/2), or brown (10 YR5/3). When heat-treated above 250 degrees C it becomes pale red (e.g.. 10 YR 6/3), above 400 degrees C it becomes reddish gray (e.g. 10YR 6/1) to dark gray (e.g. 2.5R 4/0). It has tiny white fossil fragments and whole fossils are rare. It has mediocre knapping characteristics. Deposits include erosional residuum nodules.
label: Notes
content: Geology remarks: Epoch- Ordovician, Form- Galena
label: Notes
content: Location remarks: Surface residuum occurs 5 miles southwest of Lancaster, Grant Co.,Wisc.
label: Notes
content: Archaeology remarks: Bass quarry-workshop featuring Hardin Barb projectile points; Base site; Nodema Points, A.D. 1400-1600
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 4
place: label: Place
content: Grant County, Wisconsin, 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: A599823-0
objectType: label: Object Type
content: Stone