Ametrine (RARE un-etched crystal!) (ex Bob Reynolds Collection)

Item Description

A very nice crystal of naturally occurring bicolor Ametrine from the only place in the world where it's found. Ametrine is a naturally occurring bi-color variety (AMEthyst + ciTRINE) where two separate individually colored sections are intergrown to form an alternating "radiation" pattern of purple and yellow triangles when viewed down the c axis. I have seen hundreds of Ametrine crystals from this locality, and the majority of them are heavily etched, and rarely even retain their original hexagonal form. This piece is not only sharp and un-etched, but a textbook crystal with good luster and smooth faces on the front side of the termination. Now the crystal is MOSTLY purple Amethyst, but you can see a little bit of yellow Citrine inside the upper portion of the piece with some backlighting. The piece is in good shape on the front, but it has a separation mark on the back where it was intergrown with another Ametrine crystal at one point, but became separated. All in all, this is the a very good representation of this beautiful variety of Quartz, even if there's a crystal separation on the back. It should be noted that the yellow Citrine in Ametrine is one of the few cases where we find gem quality Citrine that is not heated or irradiated to create the color. The crystal is priced at $1,200 in the inventory. From the collection of Robert (Bob) Reynolds. Bob was a well-known fossil and mineral expert and former Curator of Earth Sciences at the San Bernardino County Museum in California. The rare phyllomanganate-chromate species Reynoldsite was named in his honor in 2011.