Pentagonite on Stilbite

T

3,384 for sale·Member since 2026

Pentagonite is the much more rare cousin of cavansite, technically a "dimorph" which means that it is the same chemistry but a different crystal habit, and therefore a different species. The color is equally good, but the sparkly luster on pentagonites at their best is better than most cavansite. The species is found at a ratio of about 1 pentagonite to 1000 cavansites at these rich quarries in India and simply nowhere else in good showy form. Usually, pentagonite of 1-2 cm is considered quite good, and some 2-4 cm floater clusters were found in the past. This specimen features a "tree" of crystals standing 6 cm tall on contrasting white matrix! I have never seen a cluster of the species of this size, so perfectly displayed, intact and undamaged. The termination is complete, even. I purchased this in a larger-sized chunk of matrix and took the risk of trimming it out, long ago. It stands for size and impact, as very high among this species - and with an aesthetic of form and color unlike any other mineral. This particular specimen came out probably in the mid 2000s, and I have seen none of this magnitude since. Photo by Joe Budd. Comes with a custom lucite base. View a rotating video of this piece at https://goo.gl/7NJQbs