A pleasing specimen of gemmy emerald green Fluorite crystals with Calcite, from the Heights Mine, Weardale. Crystals of Fluorite measure to 0.9cm on edge, and contrasted against the beige/creamy Calcite crystals. The crystals of Calcite display thin segmented prism areas with nailhead terminations. Formed on a red-brown Goethite replaced Limestone matrix. From the George Farr collection.