6521 - Spinel

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
Specimen Number
F150

2/234 or 22/234

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