Willemite from Franklin Mining District, New Jersey, USA - image 1

Willemite from Franklin Mining District, New Jersey, USA

Help improve this record

No owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.

Sign in to contribute
This quite unusual miniature specimen from Franklin Mining District in Sussex County, New Jersey, USA features a rare doubly-terminated Willemite crystal. This 2 cm long crystal is delicately perched upon Calcite with a little black Franklinite in association. The Willemite presents its classic stout trigonal prismatic form, which is seen in material from Franklin Mining District but rarely anywhere else. We haven't checked, but Willemite from Franklin Mining District usually exhibits vivid green fluorescence under shortwave UV light and the Calcite bright orange. Ex David Hardman collection.

Product details

SpeciesWillemiteCalciteFranklinite
SizeMiniature
Dimensions5.0 x 2.6 x 3.1 cm
Added on07/09/2025
LocalityUSA, New Jersey, Franklin Mining District
Current owner
Unknown Owner
Acquired
May 2026
Price paid
$450.00
Previous owners
DateCollectorAcquisition price
—Crystal ClassicsNot disclosed

Learn more

Willemite
Mineral guide
Learn about Willemite
fluorescent zinc silicate with UV glow; daylight colors range from colorless to pistachio, iconic from Franklin–Sterling Hill and Tsumeb.
Willemite
Regional guide
Willemite from Franklin Mining District, New Jersey, USA
, Franklin Mining District — renowned for vivid shortwave UV fluorescence, daylight crystal variety, and the classic franklinite–calcite association.
Locality guide
Franklin Mining District
Franklin Mining District, USA — renowned for franklinite, willemite, zincite, and calcite; world-famous fluorescent suite and premier collector locality.