9hlnawt ((FLUOBORITE)), $15 MINIMUM BID, Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, 2.5 x 2 x 2 cm, Thumbnail, | |
White fibrous coatings of Fluoborite on typical red Willemite and black Franklinite. Willemite is fluorescent with a green color. ex N A Wintringham collection. |