Allactite



Stout allactite crystals in subparallel, slightly radial growth (red), fluorite (white), willemite (pink-tan) and minor secondary copper (green-blue) from Sterling Hill Mine, NJ. Field of view 3/4". From the collection of, and photo by Robert A. Boymistruk.


Allactite crystals, fluorite, willemite and minor secondary copper from Sterling Hill Mine, NJ.