someHerrings:
North Carolina Sphalerite in Barite - WL
someHerrings:
North Carolina Sphalerite in Barite - UVa
someHerrings:
North Carolina Sphalerite in Barite - PHOS
someHerrings:
North Carolina Sphalerite in Barite - PHOS (Photostimulated phosphorescence darkening)
someHerrings:
North Carolina Sphalerite in Barite - PHOS (Photostimulated phosphorescence darkening)