This is a great looking piece of a vuggy matrix, richly lined with numerous superbly defined ruby-red Proustite crystals,- and this specimen is excellently crystallized on both sides. The Proustites here are super terminated, mirror bright and they are showing a wonderful striation.
Although admittedly hard to find, this specimen also has some very fine clusters of the equally RARE silver-arsenic sulphosalt, Xanthoconite, as yellow-orange and light tan equant well-developed tabular, six-sided crystals. A stunning specimen of species and locality of this highly desired silver sulfosalt. Exceeding rare in such a superb quality.