MINERALOGICAL NOTES — ANDERSON. 129 



The four crystals exhibited the following combinations (i. figs. 

 3 4 ; iii, figs 5, 6) :— 



c (I It III X "■ .'■ '' r s f \ V t I z 



Cryst. 001 100 010 110 120 101 Fol Oil 111 121 112 212 Ul 212 HZI 211 311 



i. — X X X — X X XX X — — X — X X X 



ii. — X — X — X — X — - - — — X — — X X 



iii. — X X X xxxx X — xxxxxxx 



iv. X X — X — X x X X X — - — X — X X X 



