At-A-Glance
Country of Origin
NJ
United States
Photos
Essential Information
Specimen ID
6528
Mineral Name
Friedelite
Chemical Formula
Mn8Si6O15(OH,Cl)10
Subcollection
Franklin and Sterling Hill Suite
Additional Details
Specimen Number
F155
Notes for Researchers
1/384a
Physical Description
Vein almost 2 cm thick of a fine-grained, brownish red mineral, probably friedelite, in contact with granular green-gray willemite-franklinite ore lacking calcite.
*Should check optics and/or X-ray to see if this might instead be schallerite, a much rarer mineral from the locality.
Geographic Origin
Locality Nickname
Franklin, New Jersey
Locality Lat/Long
41.1220409, -74.5804378
Mining District
Franklin Mining District
Mine Name
Franklin Mine