Filmore Fused Shale
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: 1989
name: label: Collector
content: Ray Harwood
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-1378 (Filmore Fused Shale): Not a collection from archaeological context. Known collection procedure. Collection includes raw material and modern flint-knappers' work.
label: Notes
content: L-1378 (Filmore Fused Shale)
label: Notes
content: (Information obtained from Filmore Flint Type Sheet) Filmore Flint is also known as Filmore Fused Shale, Filmore Obsidian, Combustionite, Grimes Canyon, Grimes Fused Shale, or Grimes Obsidian. It can be a fused/vitrified sand, natural glass, or unfused shale. It is dark gray, black, red, orange, yellow, tan, brown, white, lavender, or green. When weathered it hydrates like obsidian and is mistaken for basalt. It has no vitreous luster and is glassy. It has a semilustrous to matte texture. Deposits include river washed cobbles and virgin lens from a roadcut.
label: Notes
content: Geology remarks: (Information obtained from Filmore Flint Type Sheet) Geology: Form- Sespe
label: Notes
content: Location remarks: (Information obtained from Filmore Flint Type Sheet) Grimes Canyon, southern Ventura County, CA; Outcrop known to Chumash Indians as KA-OOL-OOL, "Hot Earth"; Prehistoric quarry site.
label: Notes
content: Archaeology remarks: (Information obtained from Filmore Flint Type Sheet) Quarried by Chumas Indians, ancient tunnels in nearby cliffs; Knife of this material found on Santa Cruz Island, probably dates to 1000 A.D.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 1
place: label: Place
content: Ventura County, California, 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: A598140-0
objectType: label: Object Type
content: Stone