Section 1: Minerals and Mineral Resources E. Q.: What are minerals and how do people use them?

S

Sabatierite Sabieite Sabinaite Safflorite Sal ammoniac Saliotite Samarskite Samsonite Sanbornite Saneroite Sanidine (orthoclase variety) Santite Saponite (clay mineral) Sapphirine Sassolite Sauconite Scapolite (a group of silicate minerals) Scheelite Schoepite Schorl (black tourmaline) Schreibersite Schwertmannite Scolecite Scorodite Scorzalite

Seamanite Seeligerite Segelerite Sekaninaite Selenite Selenium Seligmannite Sellaite Senarmontite Sepiolite Serpentine group Shattuckite Siderite Siderotil Siegenite Sillimanite Silver Simetite Simonellite Skutterudite Smaltite Smectite Smithsonite Soda niter Sodalite

Sperrylite Spessartite Sphalerite Sphene Spinel Spodumene Spurrite Stannite Staurolite Steacyite Steatite (talc) Stephanite Stibnite Stichtite Stilbite Stilleite Stolzite Stromeyerite Strontianite Struvite Studtite Sugilite Sulfur Sussexite Sylvanite Sylvite

Varieties that are not valid species:

• 
  Sapphire (gem corundum of any color except red, especially blue varieties)
  
• 
  Sard (a variety of chalcedony/quartz)
  
• 
  Satinspar (a variety of Gypsum)
  
• 
  Smoky quartz (a brown or black variety of quartz)
  
• 
  Soapstone (a rock)
  
• 
  Spectrolite (a variety of labradorite)
  
• 
  Stantienite (a variety of amber)
  

T

Massive turquoise in matrix with quartz from Mineral Park, Arizona.

Tachyhydrite Taenite Talc Tantalite Tantite Tanzanite Tarapacaite Tausonite Teallite Tellurite Tellurium Tellurobismuthite Temagamite Tennantite Tenorite Tephroite Terlinguaite Teruggite Tetradymite Tetrahedrite Thaumasite Thenardite Thomasclarkite Thomsenolite Thorianite Thorite Thortveitite Thuringite

Tiemannite Tin Tincalconite Titanite Titanowodginite Todorokite Tokyoite Topaz Tobermorite Torbernite Tourmaline (group of silicate minerals) Tremolite Trevorite Tridymite Triphylite Triplite Triploidite Tripuhyite Trona Tsavorite Tschermigite Tugtupite Tungstite Tyrolite Turquoise Tusionite Tyuyamunite

Varieties that are not valid species:

• 
  Tanzanite (variety of Zoisite)
  
• 
  Thulite (variety of Zoisite)
  
• 
  Travertine (form of calcium carbonate)
  
• 
  Tsavorite (gem variety of grossularite garnet)
  

U

Uchucchacuaite Uklonskovite Ulexite Ullmannite Ulvospinel Umangite

Umber Umbite Upalite Uraninite Uranophane Uranopilite Uvarovite

Varieties that are not valid species:

• 
  Ultramarine
  
• 
  Unakite, a rock composed of feldspar, epidote and quartz
  
• 
  Uralite alteration actinolite
  

V

Vaesite Valentinite Vanadinite Variscite Vaterite Vauquelinite

Vauxite Vermiculite Vesuvianite Villiaumite Violarite Vivianite Volborthite

W

Wagnerite Wardite Warikahnite Warwickite Wassonite Wavellite Weddellite Weilite Weissite Weloganite

Whewellite Whitlockite Willemite Wiluite Witherite Wolframite Wollastonite Wulfenite Wurtzite Wüstite Wyartite

Varieties that are not valid species:

• 
  Wad
  

X

• 
  Xenotime
  
• 
  Xifengite
  
• 
  Xonotlite
  

Y

• 
  Ye'elimite
  
• 
  Yttrialite
  
• 
  Yttrocerite
  
• 
  Yttrocolumbite
  

Z

Zabuyelite Zaccagnaite Zaherite Zajacite-(Ce) Zakharovite Zanazziite Zaratite Zeolite (group of silicate minerals) Zhanghengite Zharchikhite Zektzerite Zhemchuzhnikovite Zhonghuacerite-(Ce) Ziesite Zimbabweite

Zinalsite Zinc-melanterite Zincite Zincobotryogen Zincochromite Zinkenite Zinnwaldite Zippeite Zircon Zirconolite Zircophyllite Zirkelite Zoisite Zunyite