At-A-Glance
Country of Origin
NJ
United States
Photos
Essential Information
Specimen ID
6521
Mineral Name
Spinel
Chemical Formula
MgAl2O4
Subcollection
Franklin and Sterling Hill Suite
Additional Details
Specimen Number
F150
Notes for Researchers
2/234 or 22/234
Physical Description
Group of very well-formed spinel crystals, naturally weathered from calcite matrix with phlogopite, nice example from the old surface finds. Also tremolite.
Geographic Origin
Locality Nickname
Franklin, New Jersey
Locality Lat/Long
41.1220409, -74.5804378
Mining District
Franklin Mining District
Mine Name
Franklin Mine