This is a beryl crystal, variety heliodor, from Mocuba, Mocuba District, Alto Ligonha District, Zambezia Province, Mozambique. I do not know much about this locale other than it produces gem quality aquamarine for the gem- jewelry trade and mineral specimens are uncommon. This beryl is the golden yellow variety called heliodor. Pure beryl is colorless and different colors of beryl like emeralds, aquamarine, heliodor and others get their colors from impurities in the crystal lattice. Heliodor is a silicate and contains the elements Be, Al, Si and O. This piece has multiple terminations at the base an a tapered irregular termination at the top which has healed surfaces. The crystal is mostly transparent with a glass luster and it has small feldspar crystals attached. It measures 1 1/16 x 3/8 x 5/16 inches or 26 x 9 x 6 mm.