“Sparkling white druse quartz crystals have formed a cast of fluorite crystals, which are now long gone. On the "positive" side of the cast the quartz crystals are sparsely covered with brown siderite and a few black sphalerite crystals. The "negative" side of the cast is very richly covered (so much so that the quartz cast is barely visible) with the siderite and sphalerite crystals. The previous label states that this is from the Boundary Cross Vein.”
Kevin Conroy - 10th March 2017