At-A-Glance
Country of Origin
NJ
United States
Contributors
Edward Sampson
Photos
Essential Information
Specimen ID
6510
Mineral Name
Willemite
Chemical Formula
Zn2SiO4
Subcollection
Franklin and Sterling Hill Suite
Additional Details
Associated Minerals
Rhodonite
Microcline
Specimen Number
F137
Notes for Researchers
13776
Physical Description
Zinc ore showing strong compositional layering. Willemite-bearing zinc ore on the pointed end grades into a manganese-rich, rhodonite-bearing layer in the center, then into a feldspar-rich layer with scattered grains of franklinite.
Geographic Origin
Locality Nickname
Franklin, New Jersey
Locality Lat/Long
41.1220409, -74.5804378
Mining District
Franklin Mining District
Mine Name
Franklin Mine