ROKUEHNIT
| 9 |
ROMANECHIT
| 10 |
ROSIERESIT
| 10 |
ROSSOVSKYIT
| 11 |
ROUTHIERIT
| 10 |
ROYMILLERIT
| 11 |
ROZHDESTVENSKAYAIT
| 18 |
RUBINSPINELL
| 12 |
RUDABANYAIT
| 11 |
RUDASHEVSKYIT
| 13 |
RUEDLINGERIT
| 12 |
RUSTENBURGIT
| 12 |
RUTHENARSENIT
| 13 |
RUTHENIRIDOSMIN
| 15 |
RUTHERFORDIN
| 12 |
SAMTBLENDE
| 10 |
SANROMANIT
| 10 |
SARANCHINAIT
| 12 |
SBACCHIIT
| 9 |
SCHACHNERIT
| 11 |
SCHAEFERIT
| 10 |
SCHNECKENSTEIN
| 14 |
SCHNEEBERGIT
| 12 |
SCHNEIDERHOEHNIT
| 16 |
SCHOELLHORNIT
| 13 |
SCHORLOMIT
| 10 |
SCHUBNELIT
| 10 |
SCHULENBERGIT
| 13 |
SCHWARZEROPAL
| 13 |
SCHWERTMANNIT
| 13 |
SCORZALITH
| 10 |
SEINAEJOKIT
| 11 |
SEKANINAIT
| 10 |
SELIVANOVAIT
| 12 |
SENARMONTIT
| 11 |
SERRABRANCAIT
| 13 |
SHATTUCKIT
| 10 |
SHENZHUANGIT
| 12 |
SHINKOLOBWEIT
| 13 |
SHUVALOVIT
| 10 |
SIDEROPHYLLIT
| 13 |
SIIDRAIT
| 8 |
SIMONELLIT
| 10 |
SJOEGRENIT
| 10 |
SKLODOWSKIT
| 11 |
SKOLEZITACHAT
| 13 |
SKORZALITH
| 10 |
SKUTTERUDIT
| 11 |
SOEHNGEIT
| 9 |
SOMERSETIT
| 10 |
SORENENIT
| 9 |
SPANGOLITH
| 10 |
SPEKTROLITH
| 11 |
SPESSARTIN
| 10 |
SPHAEROCOBALTIT
| 15 |
SPHAEROKOBALTIT
| 15 |
SPIONKOPIT
| 10 |
STANNOIDIT
| 10 |
STANNOPALLADINIT
| 16 |
STAROCESKEIT
| 12 |
STEINHARDTIT
| 12 |
STEINMANNIT
| 11 |
STEINMETZIT
| 11 |
STERNBERGIT
| 11 |
STIBICONIT
| 10 |
STIBIOCOLUSIT
| 13 |
STIBIOTANTALIT
| 14 |
STILLWATERIT
| 12 |
STILPNOMELAN
| 12 |
STOEFFLERIT
| 11 |
STRACHERIT
| 10 |
STRAETLINGIT
| 12 |
STRASSMANNIT
| 12 |
STROMEYERIT
| 11 |
STRONALSIT
| 10 |
STRONTIANIT
| 11 |
STRONTIOORTHOJOAQUINIT
| 22 |
STRONTIOPERLOFFIT
| 17 |
STRONTIORUIZIT
| 14 |
STUETZIT
| 8 |
SULFHYDRYLBYSTRIT
| 17 |
SUSEINARGIUIT
| 13 |
SVANBERGIT
| 10 |
SVENEKIT
| 8 |
SVORNOSTIT
| 10 |
SYNADELPHIT
| 11 |
SZAIBELYIT
| 10 |
SZTROKAYIT
| 10 |
SZYMANSKIITTACHARANIT
| 21 |
TACHYHYDRIT
| 11 |
TAINIOLITH
| 10 |
TAKEUCHIIT
| 10 |
TANIAJACOIT
| 11 |
TANTALCARBID
| 12 |
TANTALOWODGINIT
| 15 |
TANTEUXENIT
| 11 |
TARAPACAIT
| 10 |
TARNOWITZIT
| 11 |
TATARINOVIT
| 11 |
TAVAGNASCOIT
| 12 |