Helvite-Genthelvite series Huanggang Mine #1, Chifeng ...
Description: Helvite-Genthelvite series Huanggang Mine #1, Chifeng Pref., Inner Mongolia AR, China 3.4 x 4.5 cm Root beer-colored crystals of helvite-genthelvite series attached to a sceptered quartz crystal dotted with small spheres of dark green clinochlore.