The Millers River Natural History Museum and Laboratory presents its inaugural show, The Garnet Cabinet, on October 26 in a new gallery at 100 Main Street in Athol, Massachusetts. The three-dimensional “cabinet†made by Royalston artist Donald Shambroom uses paintings, sculpture, and rhombic dodecahedrons constructed of cardboard by local crafters, to evoke the space under the earth’s crust where crystals formed more than 360 million years ago. For more information visit www.atholbirdclub.org. Below is Mr. Shambroom’s “Geranium.”