At-A-Glance
Country of Origin
NJ
United States
Photos
Essential Information
Specimen ID
3104
Mineral Name
Pyrochroite
Chemical Formula
Mn(OH)2
Subcollection
Franklin and Sterling Hill Suite
Additional Details
Associated Minerals
Gageite
Specimen Number
002
Notes for Researchers
Type locality for gageite. Chemical analysis on card.
Physical Description
Black vitreous scaly masses and small gray-white needlelike crystals
Geographic Origin
Locality Nickname
Franklin, New Jersey
Locality Lat/Long
41.1220409, -74.5804378
Mining District
Franklin Mining District
Mine Name
Franklin Mine