5949 - Roeblingite

At-A-Glance

Country of Origin

NJ
United States

Photos

Essential Information

Specimen ID

5949

Mineral Name

Roeblingite

Chemical Formula

Pb2Ca6(Si6O18)(SO4)2(OH)2•4(H2O)

Subcollection

Franklin and Sterling Hill Suite
Associated Minerals
Hancockite
Hendricksite
Andradite
Specimen Number
001

Card exists for 2/143a - probably same specimen

White, porcelain-like roeblingite forms the core of this nodiform specimen and is surrounded by a brownish pink “altered hancockite” matrix. The matrix possibly contains feldspars, hendricksite, andradite, and calcite. Several 1.5 – 3 cm damaged and etched crystals of andradite are present on the bottom surface of the specimen. The specimen is a rough half-nodule and measures approximately 8 x 7 x 6 cm.

Geographic Origin

Locality Nickname

Parker Shaft, Franklin, New Jersey

Locality Lat/Long

41.1220409, -74.5804378

Mining District

Franklin Mining District

Mine Name

Franklin Mine

Mine Level

Parker Shaft