Boracite Crystal Small 320×286 Medium 640×571 Large 1024×914 Download Tiff Original 2400×2142 | (464.6 KB) Description A cube crystal of Boracite Keywords crystals, geometry Galleries Crystals Source: The Encyclopedia Britannica, Eleventh Edition (New York: The Encyclopedia Britannica Company, 1910)IV: 241 Courtesy the private collection of Roy Winkelman
