6.186ggg ((VIVIANITE)), $25 MINIMUM BID, Blackbird Mine, Cobalt, 5.5 x 5 x 2.5 cm, Miniature | |
Here is a specimen of Vivianite crystals that formed in a 2.5 cm seam or crack. The specimen has contact on the top and bottom with Vivianite protruding all around the perimeter. ex Gil Griffin collection |