This is a riveting, beautiful purple crystal of hackmanite with excellent sharpness, nestled in contrasting matrix! It is very sharp, and very lustrous as far as they go. It is also translucent (in person more obvious), and fluorescent. The crystal measures almost 2 cm across and is complete, although it has on one back-facing face a contact where another crystal had attached. This detracts only minimally from a visual standpoint, but made it very inexpensive and especially so considering its display quality. 5 x 4 x 3.5 cm