6528 - Friedelite

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
Specimen Number
F155

1/384a

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