Willemite with Franklinite and Calcite - image 1
Willemite with Franklinite and Calcite - image 2
specimen video

Willemite with Franklinite and Calcite

Unknown Owner
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

Species
Willemite, Calcite, FrankliniteAbout Willemite →
SizeMiniature
Dimensions5.0 x 2.6 x 3.1 cm
Added on07/09/2025
Locality
USA, New Jersey, Franklin Mining DistrictRegional guide →

Known provenance

DateCollectorAcquisition price
05/2026Unknown Owner$450.00
—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
bright yellow-green fluorescence under shortwave UV, gemmy crystals and varied colors from the Franklin District, with franklinite and calcite.