Taxon:

Biotite tonalite - Primary  Search this

Place:

Just east of Foundry Branch, outcrop, District of Columbia, United States, North America

Geologic Age:

Ordovician - Lower/Early

Record Last Modified:

14 Dec 2021

Specimen Count:

1

Stratigraphy:

Georgetown Intrusive Suite Gp

Other Numbers:

Collector's field number : GM-6/ 2329

IGSN : NHB006YV4

USNM Number:

11731474

See more items in:

Mineral Sciences

Rock & Ore Collections

Locality Collection

Data Source:

NMNH - Mineral Sciences Dept.

GUID:

http://n2t.net/ark:/65665/3b8797e77-3028-4c3c-b3ca-8d22ba6efa56

EDAN-URL:

edanmdm:nmnhmineralsciences_1369509