Sally Rock Felsite
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: 12 Oct 1986
name: label: Collector
content: W. F. Bowman
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-282 (Sally Rock Felsite): Direct collection from outrcrop. Not a collection from archaeological context. Unknown collection procedure. Collection includes raw material, outer surface, and naturally-weathered specimens.
label: Notes
content: L-282 (Sally Rock Felsite)
label: Notes
content: Sally Rock Felsite, also known as Sally Rock, is a grey-green to tan felsite. It becomes cream to tan with rust colored stains produced by disintegration of pyrite content when weathered. It may have numerous, minute, pyrite crystal inclusions. It has a coarse grained, homogeneous texture. Deposits include Neponset River outcrops, also glacial deposits, Braintree, MA.
label: Notes
content: Geology remarks: Epoch- Cambrian, Group- Mattapan Volcanic Complex
label: Notes
content: Location remarks: Outcrops on the Neponset River in Hyde Park, southeastern Massachusetts; quarry lies about half a mile north of the Neponset River on Stony Brook.
label: Notes
content: Archaeology remarks: Utilized by Middle Archaic groups, especially within the Neville complex, popular again with the Susquehanna tradition complex; glacial quarry at Braintree, MA, 19NF-40
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 3
place: label: Place
content: Hyde Park, Massachusetts, 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: A598547-0
objectType: label: Object Type
content: Stone