Brookite octahedra Another outstanding feature is the

Another outstanding feature is the wonderful color contrast between the vivid emerald green of the Vivianite and the altered red sandstone matrix

Better quality than the photos indicate

Richard Kosnar

This one is in very good shape for this material despite a little bit of roughness here and there but just look at how sharp and lustrous the crystals are

Specimen# CO712B91

Brookite octahedra Another outstanding feature is theA solitary, fine quality, gemmy, striated, rich sienna red colored 9 mm crystal of Brookite is aesthetically flaring off the contrasting host rock matrix. The crystal shows a beautiful red orange color when backlit along with a classic internal black "phantom". The Brookite is completely undamaged. Specimen # BROOK31918