R

Ralstonite


Ramsbeckite ?


Ramsdellite


Rankachite


Rathite


Realgar


Reichenbachite


Rhabdophane


Rhodochrosite


Rhodonite


Rhönite


Richelsdorfite


Riebeckite (Amphibole Supergroup)


Ripidolite


Robertsite


Rockbridgeite


Roedderite


Romanechite


Rosasite


Roscherite


Roselite


Rubellane


Rubellite (Tourmaline Group)


Rutile