Lithic Type Specimen: OR-1 (Ordovician Roubidoux, Variety 1)
date: label: Accession Date
content: 30 Aug 2012
label: Collection Date
content: 1970 to 1990
name: label: Collector
content: Don R. Dickson
label: Donor Name
content: Don R. Dickson
notes: label: Notes
content: OR-1 (Ordovician Roubidoux (pronounced Roo' be do), Variety 1): Roubidoux chert & quartzite are found in a broad band from Benton Co., Mo. to Poplar Bluff, Mo. Roubidoux chert usually has a light gray to cream colored ground with thin and slightly darker streaks of gray. Many small silica particles glisten in the sunlight and at 10 X are seen to be transparent quartz grains scatteredd throughout a light colored field. Vugs are rare in samples collected by the writer, but quartz grains often fill the seams of those present. Generally the texture is medium to coarse and workability only fair. Iron stains many fracture planes at some locations (a reddish oxide). OR: Roubidoux (S. Central MO.) Equivalent in Ellenburger Group near Cherokee, TX. Ordovician.
label: Notes
content: Roubidoux
label: Record Last Modified
content: 22 Jun 2022
label: Specimen Count
content: 1
place: label: Place
content: Phelps County, Missouri, 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: 2060436
label: USNM Number
content: A587212-0
objectType: label: Object Type
content: Stone