At-A-Glance
Country of Origin
NJ
United States
Photos
Essential Information
Specimen ID
6539
Mineral Name
Lead
Chemical Formula
Pb
Subcollection
Franklin and Sterling Hill Suite
Additional Details
Associated Minerals
Microcline
Andradite
Caswellite
Specimen Number
F166
Notes for Researchers
F038
Physical Description
Pale tan material is probably fine-grained altered feldspar, locally with small scales of native lead. Also contains very pale tan, small books of “caswellite” (hydrothermally altered mica). Amber brown mineral is andradite. Good reference piece, abundant lead.
Geographic Origin
Locality Nickname
Franklin, New Jersey
Locality Lat/Long
41.1220409, -74.5804378
Mining District
Franklin Mining District
Mine Name
Franklin Mine