HEXAGONAL
including trigonal subdivision
Antimony
Apatite
Arsenic
Beryl
Bismuth
Chalcedony
Corundum
Calcite
Dolomite
Gaspeite
Graphite
Hematite
Ice
Jarosite
Lonsdaleite
Magnesite
Mercury
Mimetite
Natrojarosite
Otavite
Pyromorphite
Quartz
Rhodochrosite
Siderite
Smithsonite
Sphaerocobaltite
Stibarsen
Tellurium
Tincalconite
Tourmaline
Vanadinite
Wurtzite
Many more to come soon!