This piece is the 360 degree Apophyllite crown, formed at the terminus of a thin stalactite of Chalcedony covered Basalt, which is visible on the base. The largest crystal of Apophyllite is a double terminated 2.5", other crystals are similarly large but emerge from the matrix. A single, nicely terminated, crystal of Pink Stilbite accompanies. Tiny bursts of Apophyllite crystals are hidden throughout, tinted green by what may be Celadonite. Turntable appropriate. Jalgaon, Maharashtra, India. 3.5" x 3" x 2.75", 1 lbs.