“A single crystal of deep blue fluorapatite that exhibits both the positive and negative hexagonal prism and is terminated by a complex group of several shallow dypyramid forms. The prism faces are very lustrous and the back of the crystal is coated with a white fine grained crust. Very rare for the location. Similar samples (and possibly this one) were seen in the collection of Mokrusha Mine geologist Igor Gurkov by Peter Lyckberg in 1985 and confirmed to be from this deposit. John Rakovan photo. ”