Lithic Type Specimen: PCIR-2 (Ironton Rhyolite, Variety 2)
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: PCIR-2 (Ironton Rhyolite, Variety 2): This is a light to medium maroon rhyolite. The composition is similar to the dark variety described above. In fact both varieties are often found in one exposure. This variety seems to be slightly coarser textured than Variety 1, but it does break with a conchoidal fracture. Sources are same as Variety 1. IRONTON RHYOLITE Variety 1: Once referred to as Stouts Creek, this rhyolite varies from deep black to purple to maroon red. Two varieties were collected: Variety 1: Black to purple medium to coarse textured ash-flow tuff with 5-15% phenocrysts of quartz and alkali feldspar. When compared to better cherts the workability is only fair, but some selections were made into bifaces commonly. This rhyolite variety is found on many mountains in the Ironton area. Good outcrops are noted on H-21 just north of the city.
label: Notes
content: Ironton Rhyolite
label: Record Last Modified
content: 22 Jun 2022
label: Specimen Count
content: 1
place: label: Place
content: Iron 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: A587216-0
objectType: label: Object Type
content: Stone