Fluorescent Mineral Database Contributed by: Bart PickardApatite var. Fluorapatite crystal cluster with quartz - PakistanCalcite from Terlingua, Texas Sphalerite var. Cleiophane and Willemite - Sterling Hill Mine, Ogdensburg, New JerseySphalerite and Willemite - Sterling Hill Mine, Ogdensburg, New JerseyCalcite Crystals in a Septarian Nodule from Grayson County, Texas FMDB Home Page Submit a new specimen! My Collection