11 x 14 Vintage Mineral Poster - Tourmaline precious amethyst The inclusion of the acrylic

The inclusion of the acrylic stand ensures that you can place this piece into service the moment you receive it

the built in solar cell will charge an internal battery

This piece would be a great addition to your (or your rock lover giftee’s) collection

interpenetration-twin of two pentagonal-dodecahedra

11 x 14 Vintage Mineral Poster - Tourmaline precious amethyst The inclusion of the acrylicVintage image from the early 1900s reproduced on uncoated classic matte paper. This lovely public domain image may be just what is needed to dress up your office, basement, rock collection or rock shop. This artwork features the following (look closely at the poster to reveal the ID tags): 1. Tourmaline, with rhombohedron; with albite and quartz on white granite 2. Tourmaline, rose red. Prism with dull, yellowish basal plane 3. Tourmaline, brown.