Georgetown Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: Mar 1990
name: label: Collector
content: Jack Holland
label: Collector
content: C. D. Cox
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-1434 (Georgetown Chert): Direct collection from outcrop. Provenience includes bedrock and modern quarry. Not a collection from archaeological context. Known collection procedure. Collection includes raw material, outer surface, and surrounding matrix.
label: Notes
content: L-1434 (Georgetown Chert): This Cretaceous chert is "chalk" entrusted. Dr. Daniel Richter stated that this silex (chert) is identical to Cretaceous flint found in Europe. The quarry is located 3 miles south of Georgetown on the west side of Route 135.
label: Notes
content: Georgetown Chert, also known as Texas Tortilla, is a light gray or light blue to dark blue chert. When weathered it becomes white and the cortex has a chalky consistency. Druzy vug inclusions with some holding water. Very fine and glossy texture. Deposits include flat, renal, ovate nodules up to 3 feet in length.
label: Notes
content: Geology remarks: Epoch- Cretaceous, Series- Upper Cretaceous/Lower Cretaceous, Stage- Washitian, Group- Washitian, Form- Georgetown/Edwards Limestone
label: Notes
content: Location remarks: Texas Crushed Stone quarry Georgetown, Williamson County Texas - 3 miles south of Williamson, west side of Rt. 135
label: Notes
content: Archaeology remarks: n.d.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 12
place: label: Place
content: Georgetown, Williamson County, Texas, 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: A599698-0
objectType: label: Object Type
content: Stone