Specimen #2028

Name: Fluorescent Willemite

Type: Mineral

Locality: Sterling Hill Mine, Franklin, New Jersey, USA

Favorite? N

Fluorescent? Y

Size: 17.8 x 10.2 x 5.75 cm

Weight: 1392

Acquired: 2010-07-12

Source: Ebay: gsandup

Label: N

Comment: Willemite fluorescent mineral, from the Sterling Hill Mine near Franklin NJ. Big, clean specimen of chunky reddish-brown willemite with a little calcite and franklinite. The willemite fluoresces green and is phosphorescent, just one small patch of the calcite fluoresces red in short wave UV light.

Minerals: Calcite (CaCO₃) Franklinite ((Zn,Mn⁺⁺,Fe⁺⁺)(Fe⁺⁺⁺,Mn⁺⁺⁺)₂O₄) Willemite (Zn₂SiO₄)

There is one picture on file

M02028-01.jpg:

Fluorescent Willemite, Sterling Hill Mine, Franklin, New Jersey - 17.8 x 10.2 x 5.75 cm