Willemite, Franklinite and Calcite Mineral Specimen - Sterling Hill Mine, Ogdensburg, New Jersey, USA

A superb specimen of Willemite and Franklinite on Calcite matrix from the Sterling Hill Mine, near Ogdensburg in New Jersey, USA. Willemite is a highly flourescing mineral and Sterling Hill is known for its fine specimens. The black Franklinite crystals are dotted around the piece and Sterling Hill is the Type Locality for this mineral. Under UV short wave, the Willemite flouresces bright green, and the Calcite fluoresces red.

The specimen measures 6cm x 4cm x 2.5cm and weighs 113g, and is best viewed under magnification to see the full detail (All weights and measures are approximate).

It will be sent with label.

This specimen comes from a from a lifelong collector of minerals who self-collected from all over the world and the UK.

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If you have any questions regarding the item then please do not hesitate to message me

Many thanks for looking