At-A-Glance
Country of Origin
NJ
United States
Photos
Essential Information
Specimen ID
6555
Mineral Name
Esperite
Chemical Formula
PbCa3Zn4(SiO4)4
Subcollection
Franklin and Sterling Hill Suite
Additional Details
Associated Minerals
Hardystonite
Willemite
Calcite
Glaucochroite
Specimen Number
F175
Notes for Researchers
3/379b
Physical Description
Esperite, hardystonite, willemite, and calcite. Quite rich in esperite, and a handsome display specimen. The brown mineral adjacent to the esperite is impure glaucochroite.
Geographic Origin
Locality Nickname
Franklin, New Jersey
Locality Lat/Long
41.1220409, -74.5804378
Mining District
Franklin Mining District
Mine Name
Franklin Mine