ORTHORHOMBIC

Adamite
Anglesite
Anhydrite
Aragonite
Aurichalcite
Barite
Celestine
Cerussite
Chrysoberyl
Cyanotrichite
Enstatite
Epsomite
Fayalite (Olivine)
Forsterite (Olivine)
Hypersthene
Loellingite
Marcasite
Olivine
Paracelsian
Rammelsbergite
Safflorite
Strontianite
Sulfur
Tephroite
Thenardite
Topaz
Tridymite ?
Witherite

Many more to come soon!