Collector:

Bruce Bradley  Search this

Donor Name:

Estate Of John D. Holland  Search this

Object Type:

Stone

Place:

Texas, United States, North America

Accession Date:

29 Dec 2016

Collection Date:

23 Apr 1988

Notes:

L-702 (Alibates Chert): Not a collection from archaeological context. Unknown collection procedure. Collection includes raw material, modern flint-knappers' work, and naturally-weathered specimens.

L-702 (Alibates Chert)

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.

Geology remarks: Epoch- Permian, Series- Upper Permian, Form- Quartermaster

Location remarks: Alibates National Monument, Texas; Texas panhandle and eastern New Mexico

Archaeology remarks: Alibates used throughout all cultural periods: Earth moving activities associated with chert procurement.

Record Last Modified:

22 Nov 2019

Specimen Count:

1

Topic:

Archaeology  Search this

Accession Number:

2071475

USNM Number:

A599629-0

See more items in:

Anthropology

Data Source:

NMNH - Anthropology Dept.

GUID:

http://n2t.net/ark:/65665/371f53990-53a5-4bc3-8a9c-162d7f1ae791

EDAN-URL:

edanmdm:nmnhanthropology_12617244