Azurite, Malachite – Sepon Mine, Vilabouly, Savannakhet, Laos

Sphalerite, Calcite – Elmwood Mine, Tennessee, USA

Pyrite – Minas Victoria, Navajún, La Rioja, Spain

Iron silica perimorphism after calcite on fluorite – Wölsendorf

Crocoite – Dundas, Tasmania, Australia

Tourmaline – Minas Gerais, Brazil

Amethyst – Kosakov, Turnov, Czech Republic

Calcite, Sphalerite – Elmwood Mine, Tennessee, USA

Fluorite, Calcite – Camissinone Mine, Zogno, Bergamo, Italy

Wulfenite – Red Cloud Mine, Arizona, USA