Wiluite from the remote Vilyui River Basin in Eastern Siberia was, for centuries, classified as a variety of Vesuvianite but was published as a new species in the late 1990s. Specimens are so distinctive, with the dark olive-green Wiluite crystals forming perfect, doubly-terminated, tetragonal prisms embedded within a contrasting pale grey rock matrix. This large miniature specimen has three well-formed Wiluite crystals. The largest is 24 mm in length and doubly-terminated, another, at 14 mm long is also doubly-terminated, and the third only partially exposed from the matrix. A very rich example of this unusual species, with quite large, and wonderfully formed crystals.
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