20hhgd.is ((Twinned STAUROLITE)), $25 MINIMUM BID, Kola Peninsula, Murmansk Oblast, Russia, 7 x 5 x 2 cm, Cabinet | |
A plate of Staurolite including a 90 degree twin. Most twins are 30 degree. 90 degree twins are know as Fairy Crosses and are much more desired. ex Glenn Davidson collection. |