Pleasantdale (AKA Mt. Merino) Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: 1992
name: label: Collector
content: J. D. Holland
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-1393 (Pleansantdale Chert): Collection includes raw material, outer surface, and naturally-weathered specimens.
label: Notes
content: L-1393 (Pleasantdale Chert)
label: Notes
content: Pleasantdale Chert, also known as Coxsackie, Deepkill, Hudson River, Mt.Merino, or Normanskill, is a black and green chert. It can also be gray, grayish-blue, grayish-green, dark gray, black in alternating bands or mottling of these colors. There is little color change when heat-treated. When weathered it becomes white to gray-green. It has inclusions of iron and grapolites. It has a medium to smooth grain texture and is glossy. Deposits include outcrops, bedded, tabular layers and veins.
label: Notes
content: Geology remarks: Epoch- Ordovician, Series- Middle Ordovician, Group- Normanskill, Form- Mount Merino
label: Notes
content: Location remarks: Quarry/workshops at Pleasantdale, Schaghticoke Township, Rensselaer Co., NY., USGS Troy North Quadrangle, 7.5 min. series; Pleasantville, Renselaer Co., NY
label: Notes
content: Archaeology remarks: Lamoka and possibly Brewerton Side- notched and Snook. Kill projectile points found on the site.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 8
place: label: Place
content: Pleasantdale, Rennselaer County, New York, 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: A598940-0
objectType: label: Object Type
content: Stone