SIG05 Coordinator @sig05 Active 4 years, 11 months ago ActivityProfileGroups 1 PersonalMentionsFavoritesGroups Show: — Everything — Updates New Groups Group Memberships Group Updates SIG05 Coordinator joined the group SIG-05 Mineral and Inorganic Crystallography 8 years, 10 months ago SIG-05 Mineral and Inorganic Crystallography View group