Alibates Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: Not given
name: label: Collector
content: Ed Day
label: Collector
content: Wes Phillips
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-703 (Alibates Chert): Direct collection from outcrop. Not a collection from archaeological context. Known collection procedure. Collection includes raw material, outer surface, modern-flint-knappers' work, and naturally-weathered specimens.
label: Notes
content: L-703 (Alibates Chert)
label: Notes
content: Alibates is also known as Agatized Dolomite, Alibates Dolomite, Alibates Silicified Dolomite, Amarillo Flint, Beef Steak, or Quartermaster. It is a silicified dolomite, chert or porcellanite. It is red, blue, white, maroon, yellow, purple, brown, violet, cream with "beef-steak" is the most popular with modern flintknappers. Some colors are effected more than others when heat-treated. When weathered there are various shades of brown, dark red, and maroon. It has crystal vug inclusions. Coarse to very smooth texture. Deposits include horizontally bedded silicified dolomite, large voids in matrix filled, also residual, eroded nodules and chunks.
label: Notes
content: Geology remarks: Epoch- Permian, Series- Upper Permian, Form- Quartermaster
label: Notes
content: Location remarks: Alibates National Monument, Texas; Texas panhandle and eastern New Mexico
label: Notes
content: Archaeology remarks: Alibates used throughout all cultural periods: Earth moving activities associated with chert procurement.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 21
place: label: Place
content: Potter County / Alibates National Monument, 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: A599673-0
objectType: label: Object Type
content: Stone