- Franklinite, Willemite
- Thumbnail, 2.6 x 2.0 x 1.8 cm
- Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
A classic, fine and uncommon thumbnail from the Sterling Hill Mine. A sharp, lustrous franklinite crystal is perched on a sharp, euhedral, tannish-gray willemite crystal. It is rare to find a nice franklinite on well-crystallized willemite. Excellent and typical yellow-green fluorescence on the willemite.