Dims: 3.2 x 3.2 x 2.2" (8.1 x 8.1 x 5.6 cm)
Wt: 12.8 oz. (363.0 g)
Malagasy Republic, Madagascar
This specimen consists of a heavy crust of intergrown Celestite crystals that once lined a hollow in a grainy host rock which has since eroded away. Most of the crystals in the hollow are intact- only those on the edges of the cluster show damage, but most of these are badly broken. The crystals that are intact, however, are in excellent condition and achieve lengths of over 1" (2.5 cm). Their orthorhombic prismatic form is some of the best that I have seen from this locality- the crystals are unusally long for their diameters, and have well-defined edges and clean faces that possess a vitreous luster. They have the standard pale gray-blue coloration of Madagascar Celestite and are transparent and moderately clear, as they contain many tiny bubbles and cloudy inclusions.