(blue-green) Voltaite b Copiapite stalagmite with halotrichite (white ) d Coquimbite (pale purple) with copiapite...[Fe3+(SO4)2(H2O)4]2{Fe2+(H2O)6}, and the minerals of the halotrichite group, [M2+(SO4)(H2O)5]{M3+(H2O)6}2(SO4)(H2O)5...[M(TO4)2Ø4] cluster. Apjohnite, a mineral of the halotrichite group, contains isolated [Mn2+(SO4)2(H2O)4]...supergroup, (M+,M2+)[M3+3(OH)6(TO4)2]; M = K, Na, Ag+, Tl+, (NH4), (H3O); M2+ = Ca, Pb2+, Sr, Ba; M3+...kuzelite (9) boothite (5) despujolsite (6) halotrichite (7) lanarkite (18) botryogen (8) destinezite |